4ab if a + b equal to 9 and a minus b equal to 5 find the value
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Answered by
1
a+b=9 equation 1
a-b=5 equation 2
from this
2a = 14
a=7
a+b=9
b=2
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a-b=5 equation 2
from this
2a = 14
a=7
a+b=9
b=2
HOPE IT HELPS
Answered by
7
Answer:thI is the correct answer for this question
Step-by-step explanation:4ab=(a+b)^2-(a-b)^2
4ab=(9)^2-(5)^2
4ab=81-25
4ab=56 ans.
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