(1-x)²+(15-7)²=100. slove it with clear explanation and need every single step.
Answers
Answered by
22
Answer:
Step-by-step explanation:
(1-X)²+(15-7)²=100
EXPANDING USING THE IDENTITY
(A-B)² = A²-2AB-B²
1-2X+X²+8²=100
1-2 X+X²+64 = 100
1-2X+X²= 36
X²-2 X = 35
X²-2X-35 =0
PRODUCT = -35
SUM = -2
NUMBERS = -7 AND 5
X²-7X+5X-35 =0
X(X-7)+5(X-7) =0
(X+5)(X-7) = 0
X = -5 OR X= +7.
HOPE THIS HELPS.
Answered by
109
Given:-
To find:-
- x
Solution:-
Equating both the factors with zeros.
and
so values of x = 7 and -5
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