Question

please answer me urgently step by step explanation please clear photo of answers​

Answer 1

Answer:

Step-by-step explanation:

Answer is in the image attached. Hope this will help you.!!!

Answer 2

Answer:

$(5 {}^{2} - 3 {}^{2} ) \times ( \frac{2}{3} ) {}^{2} \\ expand \: every \: term \\ (5 \times 5 - 3 \times 3) \times \frac{2}{3} \times \frac{2}{3} \\ now \: simplify \: \\</p><p>(25 - 9) \times \frac{4}{9} \\ solve \: the \: bracket \\ (16) \times \frac{4}{9} \\ now \: multiply \: the \: numbers \\ \frac{16 \times 4}{9} \\ = \frac{64}{9} \\ now \: turn \: this \: fraction \: into \: mixed \: fraction \\= 7 \frac{1}{9} \: \: <strong>Answer</strong>$

* formulae used in the solution:

$1) \: \: x {}^{n} = x \times x \times x ..... \: m \: times\\ 2) \: \: ( \frac{x}{y} ) {}^{n} = ( \frac{x {}^{n} }{y {}^{n} })$