Question

Scoateți factorul comun :
g)(a+2)(x+2)+3a(x+2)
h)(x+2)(x-3)+(x+2)(2x+1)
i)(x+1)(5x+6)-(5x-7)(x+1)
j)(2x-3)^2-4(2x-3)
Pana la ora 17:00.Va rog !!!E urgent !!Mulțumesc frumos!!!!
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Answer 1

Răspuns:

$g)(a + 2)(x + 2) + 3a(x + 2) = (x + 2)(a + 2 + 3a) = (x + 2)(4a + 2) \\ h)(x + 2)(x - 3) + (x + 2)(2x + 1) = (x + 2)(x - 3 + 2x + 1) = (x + 2)(3x - 2) \\ i)(x + 1)(5x + 6) - (5x - 7)(x + 1) = (x + 1)(5x + 6 - (5x - 7)) = (x + 1)(5x + 6 - 5x + 7) = (x + 1) \times 13 \\ j) {(2x - 3)}^{2} - 4(2x - 3) \\ (2x - 3)(2x - 3 - 4 \times 1) = (2x - 3)(2x - 3 - 4) = (2x - 3)(2x - 7)$