Algebra

Factor:

3x^2 - 27

3x^2-27=0
27+(3x^2-27)=0+27
3x^2=27
(3x^2)/3=27/3
x^2=9
x=3



Since there is 3x^2, one term must contain 3x and the other x. 27 factors into 3*3*3 or 3*9. With this information, you should be able to factor it yourself.

I hope this helps. Thanks for asking.

  1. 👍 0
  2. 👎 0
  3. 👁 81
asked by Sarah
  1. X/4+x/5=27

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Factor completely

    I am to factor this completely and I am stuck. 2r^3 + 8r^2 +6r Note: x^2 is x-squared (that is, x with the superscript 2), etc. 2 is a factor and r is a factor so the equation becomes 2r(r^2 + 4r + 3) then we can factor the term

    asked by Bekki on June 12, 2006
  2. Math

    1.3x^2+17x+10 2.5y^8-125 3.a^2-2ab-15b^2 *Please help me.You have to factor by completing. Let's look at #1: 3x^2 + 17x + 10 We have 2 and 5 as factors of the last term. What combinations can we do to arrive at the middle term?

    asked by Alex on February 4, 2007
  3. maths

    how do i solve this equation? there is another answer other than 0, but i am not sure how to get it. 5x^2 + 7x =0 factor the term: x(5x+7)=0 Either term can be zero. You found the x=0, what value of x makes 5x+7 zero? Factor it to

    asked by minerva on January 12, 2007
  4. Math2[Please Check Again]

    Problem: a^2-9 a^2-3a ----- * -------- a^2 a^2+a-12 What I Got: 3-3a ---- a-4 *Please Check My Work.* Nope. factor the denominator to a^2(a+4)(a-3) The last factor divides out in the numerattor (second term factors to a(a-3). The

    asked by Margie on February 24, 2007
  5. MATH

    Factor by identifying a common factor in each term. g) 6xy2 = (3x) (?) h) 25a3b2 = (5a2b2) (?) i) 6x + 6y + 6p Factor: j) x(x+2) + y (x + 2) - 5(x + 2) k) 5y2 - 10y3 l) ax + ay + az Factor: m) yx(y+1) + 4x(y + 1) - 5(y + 1) n) 6p2

    asked by Anonymous on April 2, 2019
  6. Pre-Calculus

    How do you factor this completly 7x*(4x-5)^3+(4x-5)^4 I am confused by the different power of exponets and the 7x in front Can you please help me? 7x*(4x-5)^3+(4x-5)^4 factor out the common term: (4x-5)^3 * (7x+4x-5) Then simplify

    asked by Jessica on June 28, 2006
  7. math

    How do you factor 2x^2-5x+2? (x-2)(2x-1) how do you figure that out? trinomials like that can usually be done intuitively, but you should have been taught a method that you can use for general cases. Look at the first term of 2x^2

    asked by George on May 2, 2007
  8. Algebra II factoring

    I need help. i am having trouble factoring trinomials into binomials. an example problem is 4n^2-5n-6 can someone show me step by step how to factor these kind of problems easily? Take the coefficient of your quadratic term in

    asked by Lane on January 11, 2007
  9. Math

    Rewrite the middle term as the sum of two terms and then factor completely. x2 + 19x + 90 Factor completely. ax – ay + x2 – xy Rewrite the middle term as the sum of two terms and then factor by grouping. x2 + 4x – 12

    asked by Frostie on May 13, 2007
  10. math

    How do I figure out 6c=__?__pt showing work See my other response. =) Brooke, You REALLY need to learn to do these systematically. Learn to watch the units, make the ones you don't want cancel, and keep the units you want for the

    asked by Brooke on November 28, 2006
  11. algebra

    Find the factors ab+ 2a +3b +6 First group the terms to get (ab+2a) + (3b+6) Now you can find a factor for each term a(b+2) + 3(b+2) Factor out the (b+2) in each term (b+2)(a+3)

    asked by deborah on January 23, 2007

More Similar Questions