Question

How do you simplify (x2+3x+10)(4x2−2x−7)?

Answer 1

$< 5x + 10 > < 1 - 2x > \\ 7x = - 9 \\ x = - 9 \div 7$

Answer 2

( 4x^4 - 2x^3- 7x^2 +12x^3-6x^2-21x

+40x^2 -20x - 70)

4x^4 +10x^3 +27x^2 -41x - 70