Question

(a+1)(a-1)-(a+4) упростите выражение

Answer 1

$(a + 1) \times (a - 1) - (a + 4) \\ a {}^{2} - 1 - a - 4 \\ a { }^{2} - 5 - a \\ a {}^{2} - a - 5$

~•~•~•ZLOY_TIGROVSKIY~•~•~•

Answer 2

(a+1)×(a−1)−(a+4)

a

2

−1−a−4

a

2

−5−a

a

2

−a−5