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Multiply and simplify. (2x - 1)(6x - 7)

A)
12x2 - 20x - 7

B)
12x2 - 2x + 7


C)
12x2 + 20x + 7


D)
12x2 - 20x + 7

2 Answers

7 votes

Answer:

D) 12x² - 20x + 7

Explanation:

User Dark Sorrow
by
5.5k points
1 vote

Answer:

D) 12x² - 20x + 7

Explanation:

Use FOIL when multiplying 2 binomials...

FOIL is Firsts, Outsides, Insides, Lasts. It's the order in which you multiply the numbers in the binomials...

(2x - 1)(6x - 7)

Firsts: (2x)(6x) = 12x²

Outsides: (2x)(-7) = -14x

Insides: (-1)(6x) = -6x

Lasts: (-1)(-7) = 7

Now add them up...

12x² - 14x - 6x + 7

12x² - 20x + 7

User Daniel Habenicht
by
5.9k points