Question

If a = - 4/5, b = 5/7 and c = - 8/9,find ab - ac.

Answer 1

Answer:

-404/45

Step-by-step explanation:

ab - ac = -4/5×5/7 - (-4/5)×(-8/9)

= -4/7 - 32/45

= (-180 - 224)/45

= -404/45.

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