Question

Answer 1

b: \(=2x^2-3x+10x-15=2x^2+7x-15\)

Answer 2

\(a,=4x^3+6x^2-2x\\ b,=2x^2-3x+10x-15\\ c,=x^2+2x+1-2x-3x^2=-2x^2+1\\ d,=9x^2y-6xy^2+4\\ h,=\left(2x^3-3x^2+4x^2-6x-2x+3\right):\left(2x-3\right)\\ =\left[x^2\left(2x-3\right)+2x\left(2x-3\right)-\left(2x-3\right)\right]:\left(2x-3\right)\\ =x^2+2x-1\)