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solniwko [45]
3 years ago
14

Simplify: (x+7)(x-4)

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
6 0

Answer:

x² + 3x - 28

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor

(x + 7)(x - 4)

= x(x - 4) + 7(x - 4) ← distribute both parenthesis

= x² - 4x + 7x - 28 ← collect like terms

= x² + 3x - 28


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