Question

7a - 2a + 4b - 2b =
9x² + 4x - 3x² + 3x =
x³ - x² + 7x²+10x³+4 =
5y²-5x-8y²+6x =
X+7+x-10-1 =
2x³-7x²+4x-2+8-3x² =

Answer 1

$1. \\ 7a-2a+4b-2b=5a+2b \\ \\ 2. \\ 9x^2+4x-3x^2+3x=6x^2+7x \\ \\ 3. \\ x^3-x^2+7x^2+10x^3+4=11x^3+6x^2+4 \\ \\ 4. \\ 5y^2-5x-8y^2+6x=-3y^2+x \\ \\ 5. \\ x+7+x-10-1=2x-4 \\ \\ 6. \\ 2x^3-7x^2+4x-2+8-3x^2=2x^3-10x^2+4x+6$

Answer 2

A) 7a-2a+4b-2b=
5a+2b
B)9x²+4x-3x²+3x=
9x²-3x²+4x+3x=          C) x³-x²+7x²+10x³+4=
6x²+7x                            x³+10x³-x²+7x²+4
D)5y²-5x-8y²+6x=                11x³+6x²+4
5y²-8y²+6x-5x=
-3y²+1x
E)X+7+X-10-1=
x+x+7-10-1
2x-3-1
2x-4
F) 2X³-7X²+4x-2+8-3x²=
 2x³-7x²-3x²+ 4x-2+8=
2x³-10x²+4x+6