In Matemáticas / Universidad | 2025-08-26
Asked by kristinaayauca
Respuesta:-60Explicación paso a paso:a= –7, b= 5, c= –8(a + b +c)(a + b - c) = ( (-7) + (5) + (-8) ) ( (-7) + (5) - (-8) ) =( -7 + 5 - 8 ) ( -7 + 5 + 8) =( 5 - 15 ) ( 13 - 7 ) =( -10 ) ( 6 ) =- 60
Answered by SinTantaTeoria | 2025-08-26