Simplify the expression and find its value if a =(-2);
5(a + 2) - 4a - 7
Answers
Answered by
0
Answer:
Given: 2(a
2
+ab)+3−ab
⇒2a
2
+2ab+3−ab
⇒2a
2
+2ab−ab+3
⇒2a
2
+ab+3
⇒2(5)
2
+(5)(−3)+3 [Putting a=5,b=−3]
⇒2×25−15+3
⇒50−15+3
⇒38.
Answered by
0
Answer:
Given 5(a + 2) - 4a - 7
Step-by-step explanation:
opening Bracket
= 5a + 10 - 4a - 7
simplify
= 5a - 4a + 10 - 7
= a + 3
putting a=(-2) in a + 3
= (-2) + 3
= 1 Answer
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