Maths

posted by .

*I'm a bit confused with this qn*
Expand and Simplify 3(3x-y)^2

  • Maths -

    3(3x-y)^2
    = 3(3x-y)(3x-y)= 3(9x^2 - 3xy - 3xy + y^2)
    = 27x^2 - 18xy + 3y^2

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Maths

    How do i expand and simplify (2x+5) (3x-4)
  2. Maths

    Please can you expand and simplify the following: (2x-5)(x+3) Many thanks. Happy New Year
  3. Maths

    Expand and simplify expression for the area of an rectangle Shorter side = x+3 Longer side = 5x-4
  4. maths

    Solve 5x + 3y = 4 3x + 4y = 9 Just a bit confused Please help
  5. Math

    Hi there! I am so confused about these questions if anyone could help that would be great. 1. Simplify. x+5/x^2+6x+5 A) 1/x+1; where x= -1*** B) 1/x+1; where x=-1,-5 C) 1/x-5; where x=5 D) x-5 2. Simplify. x^2+3x-4/x+4 A) 1/x-4; where …
  6. Urgent math

    so I tried to expand this question and I got x^3 *x2, i don't know if it's right but if not can I get a step by step explanation please, Expand (2x + y^2)^5. (Simplify your answer completely.)
  7. maths

    expand and simplify:2(x÷2)squared-(2x-1)(x+2)
  8. maths

    expand and simplify:(5x-3)(2xsquared+3x-3)
  9. Maths

    Show that: (3x-1)(x+5)(4x-3) = 12x^3 + 47x^2 - 62x +15 for all values of x. (3x-1)(x+5)(4x-3) = (?
  10. Algebra

    need help checking Create a 2-column proof for the following equation. X + X + 10 + 2(2X + 10) = 180 X + X + 10 + 2(2X + 10) = 180 (Given) 2X + 10 + 2(2X + 10) = 180 (Simplify) 2X + 10 + 4X + 20 = 180 (Expand) 6X + 30 = 180 (Simplify) …

More Similar Questions