Question

pls evaluate this (0.7)²

Answer 1

0.7*0.7

0.49

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Answer 2

Answer:

$( 0.7) {}^{2} = (1- 0.3) {}^{2} \\ = {1}^{2} + {0.3}^{2} - 2 \times 1\times 0.3 \\ = 1 + 0.09 - 0.6 \\ = 0.49$

Step-by-step explanation:

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