x|x|+7x-8=0
Solve the above equation for x.(question of modulus equality of class 11)
Answer:x belongs to 1
Plz explain.
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X^2+7x-8=0
So, 8-1= 7 and 8 into 1= 8
Now, x^2+(8-1)x-8=0
X^2+8x-x-8=0
X(x+8)-1(x+8)=0
(X+8)(x-1)=0
This is only possible when x is either -8 or 1
X can’t be in negative and so, the answer is 1
So, 8-1= 7 and 8 into 1= 8
Now, x^2+(8-1)x-8=0
X^2+8x-x-8=0
X(x+8)-1(x+8)=0
(X+8)(x-1)=0
This is only possible when x is either -8 or 1
X can’t be in negative and so, the answer is 1
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