Which expressions are equivalen] to x^3 + 9x^2 ?
1 answer:
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Answer:
y = - 13, y = 13
Step-by-step explanation:
Given
y² = 169 ( take the square root of both sides )
y = ± = ± 13
Since 13 × 13 = 169 and - 13 × - 13 = 169