Question

Помогите, прошу. Срочно нужно, пожалуйста!!

Answer 1

$displaystylett 64-b^2=8^2-b^2=(8-b)(8+b)\\ 2.89-d^2=1.7^2-d^2=(1.7-d)(1.7+d)\\ frac{100}{121}-y^2=bigg(frac{10}{11}bigg)^2-y^2=bigg(frac{10}{11}-ybigg)bigg(frac{10}{11}+ybigg)\\ t^2-frac{400}{441}=t^2-bigg(frac{20}{21}bigg)^2=bigg(t-frac{20}{21}bigg)bigg(t+frac{20}{21}bigg)\\ -16+49y^2=(7y)^2-4^2=(7y-4)(7y+4)\\ frac{4}{25}t^2-36=bigg(frac{2}{5}tbigg)^2-6^2=bigg(frac{2}{5}t-6bigg)bigg(frac{2}{5}t+6bigg)$

Answer 2

благадарю

Answer 3

Пожалуйста