If a-b=16 and a+b =4 find a^2-b^2
Answers
Answered by
0
Answer:
a^2 +b^2 = a+b *a-b
= 4*16
=64
Answered by
1
Answer:
64
Step-by-step explanation:
a-b = 16------- eq1
a+b =4---------eq2
solve eq 1 and eq 2
2a= 20
a=10
b= -6
a^2-b^2= (10)^2- (-6)^2
= 100-36
= 64
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