Question

please tell me answer​

Answer 1

hey ur answer for third part is (5a+b-6)

answer for fourth part is 38

answer for fifth part is -69

Step-by-step explanation:

(3) let no.to be subtracted be x

2a+8b+10-x=-3a+7b+16

2a+8b+10-(-3a+7b+16)=x

2a+8b+10+3a-7b-16=x

5a+b-6=x

(4)given a=5 and b=-3

2(a²+ab)+3-ab

2{(5)²+5×(-3)}+3-{(5)×(-3)}

2{25+(-15)}+3-{-15}

2{10}+3+15

2{10}+18

20+18

38

hope it helps you

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