Question

1. Solve: (3 − 4)²
with solution

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Answer 1

Answer:

(3-4)²

9-16

-7

therefore answer is-7

Answer 2

$(a - {b)}^{2} = {a}^{2} + {b}^{2} - 2ab$

$( {3 - 4)}^{2} = ( {3})^{2} + {(4)}^{2} - 2 \times 3 \times 4 \\ = 9 + 16 - 24 \\ = 25 - 24 \\ = 1$