Question

+ 3x – 6) (4x2 + 7x – 10)+x(2x + 9) – 3 (x2 - 1)

Answer 1

It is required to simplify the expression.

Consider the given expression,

$(x^2+3x-6)(4x^2+7x-10)+x(2x+9)-3(x^2-1)$

Solve the brackets as,

$4x^4+7x^3-10x^2+12x^3+21x^2-30x-24x^2-42x+60+2x^2+9x-3x^2+3$

Add the like terms,

$4x^4+19x^3-14x^2-63x+63$

Thus, the simplified expression is obtained.