Question

xfa es urgente (doy coronita)
(x+1)²=4³
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Answer 1

Respuesta:

(X+1)²=4³

(X)²+2(X)(1)+(1)² = 4³

X²+2X+1 = 64

X²+2X+1-1 = 64-1

X²+2X = 63

X²+2X-63 = 63-63

X²+2X-63 = 0

X²-7X+9X-63 = 0

X(X-7)+9(X-7) = 0

( X+9 ) ( X-7 ) = 0.

X1 = -9 X2 = 7

Explicación paso a paso: