Question

(1.02)²-(0.98)²= —
$answer \: the \: question \: quickly$
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Answer 1

${(1.02)}^{2} - {(0.98)}^{2} \\ we \: know \: that \: ( {x}^{2} - {y}^{2} ) = (x + y)(x - y) \\ = = > (1.02 + 0.98)(1.02 - 0.98) \\ = (2)(0.04) \\ = 2 \times \frac{4}{100} \\ = \frac{4}{50} \\ = \frac{2}{25}$

= 0.08