a+ b =9 and a2 - b2 =27 then find ab
Answers
Answered by
0
Answer:
a=6 b=3
Step-by-step explanation:
a+b=9
6+3=9
&
a2-b2=27
6*6-3*3=27
36-9=27
Answered by
1
Answer:
a+b=9
on squaring both sides
(a+b)^2=(9)^2
a^2+b^2+2ab=81
given a^2+b^2=27
therefore,27+2ab=81
2ab=54
ab=27
hope it helps u
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