Question

give the answer step by step explain.....​

Answer 1

The things first u have to now is.

- x - = +

+ x - = -

+ x + = +

- x + = -

Abd now ur answers

1) (-8) x (-9) + (-6) x (13)

72 + (-6) x 13

72 + (-78)

-6

2) (-7) x (-11) - (-5) x (-9) + (-13) x 4

(77) - (45) + (-52)

32 + (-52)

-20

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