Answer:
what does d equal?
Step-by-step explanation:
Answer:6
Step-by-step explanation:
Answer:
what do you mean what do you need me to work out
Step-by-step explanation:
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Answer:
x² - 16
Step-by-step explanation:
Given
(x - 4)(x + 4)
Each term in the second factor is multiplied by each term in the first factor, that is
x(x + 4) - 4(x + 4) ← distribute both parenthesis
= x² + 4x - 4x - 16 ← collect like terms
= x² - 16
