Question

1) Fatore as expressões:
a) m- 12m + 36-
b) a² + 14a + 49 =
c) 4 + 12x + 9x

me ajudem pufavo​

Answer 1

(A)

${m}^{2} - 12m + 36 = {(m - 6)}^{2}$

${m}^{2} = {(m)}^{2}$

$36 = {(6)}^{2}$

$2.m.6 = 12 \: m$

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(B)

${a}^{2} + 14a + 49 = {(a + 7)}^{2}$

${a}^{2} = {(a)}^{2}$

$49 = {(7)}^{2}$

$2.a.7 = 14a$

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(C)

$4 + 12x + {9x}^{2} = {(2 + 3x)}^{2}$

$4 = {(2)}^{2}$

${9x}^{2} = {(3x)}^{2}$

$2.2.3x = 12x$