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Use the elimination method to find all solutions of the system of equations. {3x²+4y=17 {2x²+5y=2

User Bkdraper
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Final answer:

To solve the system of equations using the elimination method, we need to eliminate one variable by multiplying one or both equations by a suitable factor so that the coefficients of one variable will be opposites. In this case, we can multiply the first equation by 2 and the second equation by 3 to eliminate the x variable. After simplifying, we find that x = ±√11 and y = -4.

Step-by-step explanation:

To solve the system of equations using the elimination method, we need to eliminate one variable by multiplying one or both equations by a suitable factor so that the coefficients of one variable will be opposites. In this case, we can multiply the first equation by 2 and the second equation by 3 to eliminate the x variable.

After multiplying, we get:

6x² + 8y = 34

6x² + 15y = 6

Now, we subtract the second equation from the first equation to eliminate the x variable:

(6x² + 8y) - (6x² + 15y) = 34 - 6

-7y = 28

y = -4

Substitute this value of y back into either of the original equations to solve for x. Let's use the first equation:

3x² + 4(-4) = 17

3x² - 16 = 17

3x² = 33

x² = 11

x = ±√11

Therefore, the solution to the system of equations is x = ±√11 and y = -4.

User KasparTr
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