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Solve the following system of equations algebraically:
y = 6x² + 5x - 13
y=-2x - 10

User Leary
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Final answer:

To solve the system of equations algebraically, we can rearrange the equations and use the quadratic formula to find the values of x that satisfy the equation. The solutions for x are 1/3 and -3/2. Substituting these values into one of the original equations will give us the corresponding values of y.


Step-by-step explanation:

To solve the system of equations y = 6x² + 5x - 13 and y=-2x - 10 algebraically, we can set the two equations equal to each other:

6x² + 5x - 13 = -2x - 10

Next, we can rearrange the equation to bring all the terms to one side:

6x² + 7x - 3 = 0

Using the quadratic formula, we can find the values of x that satisfy the equation:

x = (-b ± √(b² - 4ac)) / (2a)

Plugging in the values a=6, b=7, and c=-3 into the formula, we get:

x = (-7 ± √(7² - 4(6)(-3))) / (2(6))

Simplifying further, we have:

x = (-7 ± √(49 + 72)) / 12

x = (-7 ± √121) / 12

x = (-7 ± 11) / 12

Therefore, the two solutions for x are:

x = (-7 + 11) / 12 = 4/12 = 1/3

x = (-7 - 11) / 12 = -18/12 = -3/2

Substituting these values of x back into either of the original equations will give us the corresponding values of y.


Learn more about Solving systems of equations algebraically

User Misaochan
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