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Maurinko [17]
4 years ago
7

Simplify (3x-7)^2 Step by step

Mathematics
1 answer:
Nataliya [291]4 years ago
6 0

Answer:

9x² - 42x + 49

Step-by-step explanation:

Given

(3x - 7)² = (3x - 7)(3x - 7)

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

3x(3x - 7) - 7(3x - 7) ← distribute both parenthesis

9x² - 21x - 21x + 49 ← collect like terms

= 9x² - 42x + 49

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