Exercise
$\left(x+2\right)\left(2x^3-4x^2+7x-9\right)+\left(-4\right)$
Step-by-step Solution
Learn how to solve integral calculus problems step by step online. Expand the expression (x+2)(2x^3-4x^27x+-9)-4. Multiply the single term 2x^3-4x^2+7x-9 by each term of the polynomial \left(x+2\right). Multiply the single term x by each term of the polynomial \left(2x^3-4x^2+7x-9\right). When multiplying exponents with same base you can add the exponents: 2x^3x. When multiplying two powers that have the same base (x), you can add the exponents.
Expand the expression (x+2)(2x^3-4x^27x+-9)-4
Final answer to the exercise
$2x^{4}-x^2+5x-22$