Math

Please help Factorise fully 1. X^2-5x-14 2. Ab^2+3b 3. A^3-8a^2+15a

  1. 0
asked by Lesedi
  1. 14 = 7*2 always :)

    (x-7)(x+2)

    ------------------
    b(Ab+3)
    -----------------
    suspect you mean
    a^3-8a^2+15a
    which is
    a (a^2-8a+15)
    but we know 15 = 3 * 5 and 3+5=8 :)
    so
    a (a-5)(a-3)

    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. maths

    factorise 15a^2b^2-20ab+8
  2. maths

    factorise fully 2(x+y)-t(x+y)
  3. maths

    factorise fully: 5x^2+11x+2
  4. Math

    Factorise fully: 5pq + 10p
  5. maths

    factorise fully:18xsquared-50ysquared
  6. maths

    factorise fully:xsquared-11x+18
  7. Maths

    Fully factorise X^3-4x^2+x-6 I got (x+3) as a factor but I'm not sure what the other two factors are. Please help Thankyou
  8. maths

    factorise fully:3xsquared y-9xysquared+12xcubed y cubed
  9. Precalculus 11

    (6a^2-15a)/(6a-15a^2) (3a(2a-5))/(3a(2-5a)) Multiply top & bottom by -1 -(5-2a)/(5a-2) is that correct? I have an answer here that's -(2a-5)/(5a-2) but I don't understand how to get there... Thanks :)
  10. honors algebra II

    factoring:: i factored 15A^2B - 10AB^2 into... (15A - 10B)(15A + 10B) am i doing it correctly? because im pretty confused. thanks :] No, you are confused. This is not a difference of squares. Neither the first term or the last is

More Similar Questions