If p(x) = x2 - 1 and q(x) = 5(x-1), which expression is equivalent to (p-q)(x)?
1 answer:
Answer:
x² - 5x + 4
Step-by-step explanation:
Note that (p - q)(x) = p(x) - q(x)
p(x) - q(x)
= x² - 1 - 5(x - 1) ← distribute
= x² - 1 - 5x + 5 ← collect like terms
= x² - 5x + 4
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