Question

(2x-5).(2x+5)-(2x-5)²

Answer 1

Resposta:

(2)(−5)(2)(5)−((2)(−5))^2

=−10(2)(5)−((2)(−5))^2

=(−10)(10)−((2)(−5))^2

=−100−((2)(−5))^2

=−100−(−10)^2

=−100−100

=−200

Explicação passo a passo: