Solve for X and Y . y-x+3=0 x2-x=6+y
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Answer:
y=0 x=3 and. y=-4 x=-2
Step-by-step explanation:
hope it helps
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Answered by
1
Answer:
y - x + 3 = 0
=> y = x + 3 ---(1)
x^2 - x = 6 + y
by using (1)
=> x^2 - x = 6 + x + 3
=> x^2 - x - x = 9
=> x^2 - 2x = 9
=> x^2 - 2x - 9 = 0
=> x = -b +/- √(b^2-4ac)/2a
=> x = -(-2) +/- √[ (-2)^2 - 4×1×(-9)]/ 2×1
=> x = 2 +/- √[ 4 - (-36)]/2
=> x = 2 +/- √40/2
=> x = 2 +/- (2√10)/2
=> x = 2 + √10 ; x = 2 - √10
=> y = (2 + √10) + 3 ; y = (2 - √10) + 3
=> y = √10+5 ; y = √10 +1
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