Question

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Answer 1

Ответ:

${(a + 3)}^{2} = {a}^{2} + 2 \times 3 \times a + {3}^{2} = {a}^{2} + 6 a + 9$

${(b + 8)}^{2} = {b}^{2} + 16b + 64 \\ \\ {(x - 2)}^{2} = {x}^{2} - 4x + 4 \\ \\ {(3x + 5)}^{2} = 9{x}^{2} + 30x + 25 \\ \\ {(8y - 3)}^{2} = 64 {y}^{2} - 48y + 9$

Answer 2

(а+3)²=а²+6а+9

(b+8)²=b²+16b+64

(х-2)²=х²-4х+4

(3х+5)²=9х²+30х+25

(8у-3)²=64у²-48у+9