Simplify the expression and find its value when a=5 and b=-3.
2(a2 + ab) + 3 - ab
Answers
Answered by
0
Step-by-step explanation:
2(a²+ab)+3-ab
2a²+2ab+3-ab
2a²+ab+3
2×(5)²+5×(-3)+3
2×25+(-15)+3
50+(-15)+3
50-15+3
53-15
38 ans
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Answered by
0
Answer:
-12
Step-by-step explanation:
substitute values which are given
=2(a2 + ab) + 3 - ab
=2 [ 5 × 2 +5 × (-3) ]+ 3 - 5×(-3)
= 2 [10+(-15) ]+3-(-15)
= 2×(-15)+ 3+15
= -30+18
= - 12
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