9. Simplify the expression 2(a2 + ab) – ab and find its value if a = 5 and b = 2.
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Answered by
1
Answer:
30
Step-by-step explanation:
=2{2a+ab}-ab
=2{2(5)+(5)(2)}-(5)(2)
=2{10+10}-10
=2{20}-10
=40-10
=30
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