If the distance between the point
1 po
(2,-2) and (-1,x) is 5, then the positive
value of x is:
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Answer:
the positive value of x is 2
Step-by-step explanation:
let x1 be 2 and x2 be -1
y1 be -2 and y2 be x
d²=(x2-x1) ²+(y2-y1) ²
25=(-3)²+(x+2)²
25=9+x²+4+4x
x²+4x-12=0
(x+6)(x-2) =0
therefore,x=-6,2
the positive value of x is 2
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