Question

9. Simplify the expression 2(a2 + ab) – ab and find its value if a = 5 and b = 2.

Answer 1

Answer:

a=5 and b=2

2(a2+ab)–ab (Given)

2(5×2+5×2)–5×2

2(10+10)–5×2

2×20–10

40—10

=30 Answer.