Question

RESUELVE : R = (X-5)(X+5)+ (X-10)(X+10)

Answer 1

Explicación paso a paso:

R = (X-5)(X+5)+ (X-10)(X+10)

R=

$= ( {x}^{2} - {5}^{2} ) + ( {x}^{2} - {10}^{2} )$

$= {x}^{2} - 25 + {x}^{2} - 100$

$2 {x}^{2} - 125$