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:
