find the values of x when y=1 the formula is Y=xˆ2 -2x -3
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Answered by
0
Answer:
y=2x-3; Here x and y are variables and the value of x is given in the ... Given the value of x=2, let's put it in the equation we get ,. y=2×2–3. y=4-3. y=1.
Step-by-step explanation:
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Answered by
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Answer:
x = 3.235 or -1.235
Step-by-step explanation:
y = 1 (given)
y = x² -2x -3
So,
1 = x² -2x -3
=> x² -2x -4 = 0
a= 1, b = -2, c = -4
So, Now,
x = (-b ± √b²-4ac)/2a
=> x = ( -(-2) ± √(-2)² -(4)(1)(-4) ) /2(1)
=> x = (2 ± √20 )/2
=> x = (2 ± 4.47 )/2
=> x = 6.47/2 | x = -2.47/2
=> x = 3.235. | x = -1.235
So, That Gives Us The Value Of x as 3.235 or -1.235
Hence, x = 3.235 or -1.235
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