Question

What is the product?

(2x-1)(x + 4)
Ο
Ο
Ο 2x3-4
2x+4
2x +7x-4
2x?-7x-4
Ο
Ο

Answer 1

`2{x}^(2) + 7x - 4`

Explanation:

F [First terms] - Multiply the first terms in each set of parentheses FARTHEST TO THE LEFT

O [Outside terms] - Multiply the first term in the first set of parentheses FARTHEST TO THE LEFT by the last term in the second set of parentheses FARTHEST TO THE RIGHT

I [Inside terms] - Multiply the last term in the first set of parentheses FARTHEST TO THE RIGHT by the first term in the second set of parentheses FARTHEST TO THE LEFT

L [Last terms] - Multiply the last terms in each set of parentheses FARTHEST TO THE RIGHT

`(2x - 1)(x + 4) = 2{x}^(2) + 8x - x - 4 = 2{x}^(2) + 7x - 4`

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