How can x2 = x2 + 2x + 9 be set up as a system of equations?
2 answers:
Answer:
x = - 4.5
Step-by-step explanation:
The given expression is x² = x² + 2x + 9
we have solve the equation.
In this equation we will transfer like terms in one side of the equation.
x² - x² = 2x + 9
2x + 9 = 0
Now we subtract 9 from each side of the equation.
2x + 9 - 9 = 0 - 9
2x = -9
Now we will divide by 2 on each side of the equation.
2x/2 = -9/2
x = -4.5
X2 = x2 + 2x + 9 Now subtract x2 from both sides and you have
x2- x2 = x2 - x2 + 2x + 9 or 0 = 2x + 9 now subtract 9 from both sides so you can solve for x.
0 -9 = 2x -9...and you have -9 = 2x
Now solve for x by dividing both sides by 2 and you arrive at x = -4.5
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x²+2x=8
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what 2 numbers multiply to -8 and add to 2
-2 and 4
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Answer:
I am almost sure the answer is 5 batches
Step-by-step explanation:
1/3 times 5 is 1 2/3
<span>4x+2y=-6
2y = -4x - 6
y = - 2x - 3
slope = -2
</span><span>y-intercept when x = 0
so y = -3
answer
slope = -2
</span><span>y-intercept (0,-3)</span>
