How do you simplify $(- 9) (- 7) + (- 9) (7) - (9) (- 7)$ $(-9)(-7)+(-9)(7) - (9)(-7)$ ?

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Answer 1 · 2015-10-28T22:57:28

$(- 9) (- 7) + (- 9) (7) - (9) (- 7) = 63$ $(-9)(-7)+(-9)(7)-(9)(-7)=63$

$(- 9) (- 7) + (- 9) (7) - (9) (- 7)$ $(-9)(-7)+(-9)(7)-(9)(-7)$

Multiply the pairs of terms.

$63 - 63 + 63 = 63$ $63-63+63=63$

How do you simplify (-9)(-7)+(-9)(7) - (9)(-7)(−9)(−7)+(−9)(7)−(9)(−7)(-9)(-7)+(-9)(7) - (9)(-7)?