Respuesta:
la primera es 14 la la tercera es 4
Hola! :3
Resolvemos recordando que:
(-1) × (+1) = (-1)
(-1) × (-1) = (+1)
(+1) × (-1) = (-1)
(+1) × (+1) = (+1)
Resolvemos:
º (-2) × (-7) = +(2 × 7) = +14
º (+9) × (+5) = +(9 × 5) = +45
º (-4) × (+1) = -(4 × 1) = -4
Espero haberte ayudado :D
Atte: Jean07122006
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Respuesta:
la primera es 14 la la tercera es 4
Verified answer
Hola! :3
Resolvemos recordando que:
(-1) × (+1) = (-1)
(-1) × (-1) = (+1)
(+1) × (-1) = (-1)
(+1) × (+1) = (+1)
Resolvemos:
º (-2) × (-7) = +(2 × 7) = +14
º (+9) × (+5) = +(9 × 5) = +45
º (-4) × (+1) = -(4 × 1) = -4
Espero haberte ayudado :D
Atte: Jean07122006