If P(2,4) is equidistant from Q(7,0) …
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Naveen Sharma 7 years, 3 months ago
Given: P(2,4) is equidistnat from Q(7,0) and R(X,9).
then PQ = PR
Using Distance Formula : =
PQ = =
PR =
PQ = PR
Sqauring Both Side, We get
x2 + 4 -4x + 25 = 41
=> x2 - 4x -12 = 0
=> x2 - 6x +2x -12 = 0
=> x(x-6) +2(x-6) = 0
=> (x-6) (x+2) = 0
=> x = -2 , 6
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