squares of
Q1. (2x + 5)
and
Q2. (x- 1/x)^2
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Answer:
here are the answers
it may help you
Step-by-step explanation:
1. (2x + 5)²
= (2x)² + 5² + 2 × 2x × 5
= 4x² + 25 + 20x
= 4x² + 20x + 25
2. (x - 1/x)²
= x² + (1/x)² - 2 × x × 1/x
= x² + 1/x² - 2
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