Answer:
7. x+y/a= - 2+5/4
= 3/4 or 0.75
10. 4(x²-y²)/ab= 4(-2²-5²)/4-3
= 4(-4-25)/4-3
= - 116/1
= - 116
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Answer:
7. x+y/a= - 2+5/4
= 3/4 or 0.75
10. 4(x²-y²)/ab= 4(-2²-5²)/4-3
= 4(-4-25)/4-3
= - 116/1
= - 116