Question

(3x+5)²=

(2m-7n)²=

(3t-4k)(4k+3t)=​

Answer 1

Ответ:

${(3x + 5)}^{2} = 9 {x}^{2} + 30x + 25 \\ {(2m - 7n)}^{2} = 4 {m}^{2} - 28mn + 49 {n}^{2} \\ (3t - 4k)(4k + 3t) = 9 {t}^{2} - 16 {k}^{2}$

Answer 2

${(3x + 5)}^{2} = {9x}^{2} + 30x + 25$

${(2m - 7n)}^{2} = {4m}^{2} - 28mn + {49n}^{2}$

$(3t - 4k)(4k + 3t) = {9t}^{2} - {16k}^{2}$

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