a + b = 1, a minus b = 7 .Find the value of 5(a square + b square)
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Answered by
1
Step-by-step explanation:
35
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Answered by
1
Given :-
a + b = 1
a - b = 7
To Find :-
5(a² + b²)
Solution :-
In 1
a + b = 1
a = 1 - b
a - b = 7
1 - b - b = 7
1 - 2b = 7
-2b = 7 - 1
-2b = 6
b = 6/-2
b = -3
Using 1
a + b = 1
a + -3 = 1
a = 1 - (-3)
a = 4
5(4² + -3²)
5(16 + 9)
5(25)
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