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Which of the following is the expanded f...

Which of the following is the expanded form of `4(5x+3)(2x-1)`?

A

`40x^(2)+12`

B

`40x^(2)-12`

C

`40x^(2)-4x+12`

D

`40x^(2)+4x-12`

Text Solution

Verified by Experts

The correct Answer is:
C
Difficult: Easy
Category: Passport to Advanced Math/ Exponents
Strategic Advice: When the product of two binomials is multiplied by a constant, FOIL first, combine like terms and then distribute the constant.
Getting to the Answer: Remember, FOIL stands for first, outer, inner, and last:
`4(5x+3)(2x-1)=4(10x^(2)-5x+6x-3)=4(10x^(2)+x-3)=40x^(2)+4x-12`
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