Question

what is the factorization of the polynomial 2x^2+18x+40

Answer 1

first take out the 2 to give
2(x^2 + 9x + 20)

Answer 2

o ok

Answer 3

now you need to factor whats in the brackets

Answer 4

You can also check your work with an online calculator
http://www.math.com/students/calculators/source/quadratic.htm

Answer 5

the facors will be of the form

(x+ a)(x + b)

you need to find 2 numbers a and b where ab = +20 and a + b = + 9

Answer 6

2(x+4)(x+5)?

Answer 7

right

Answer 8

thanks