Question: Given the equation2x+1 = 3, solve for x and identify if it is an extraneous solution. 1)x = 4, solution is extraneous 2)x = 4,
Given the equation2x+1 = 3, solve for x and identify if it is an extraneous solution.
1)x = 4, solution is extraneous
2)x = 4, solution is not extraneous
3)x = 5, solution is extraneous
4)x = 5, solution is not extraneous
2) Given the equation 4x-3= 12, solve for x and identify if it is an extraneous solution.
1)x = 0, solution is not extraneous
2)x = 0, solution is extraneous
3)x = 12, solution is not extraneous
4)x = 12, solution is extraneous
3) Solve for x, given the equationx-5 + 7 = 11.
1)x = 21, solution is extraneous
2)x = 21, solution is not extraneous
3)x = 81, solution is extraneous
4)x = 81, solution is not extraneous
4) Israel started to solve a radical equation in this way:
x+6 4 = x
x+6 4+ 4= x+ 4
x+6= x + 4
(x+6)2=(x + 4)2
x + 6 = x2+ 8x + 16
x + 6- 6= x2+ 8x + 16- 6
x = x2+ 8x + 10
x- x= x2+ 8x + 10- x
0 = x2+ 7x + 10
0 =(x + 2)(x + 5)
x + 2 = 0x + 5 = 0
x + 2- 2= 0- 2x + 5- 5= 0- 5
x = -2x = -5
Solutions = -2, -5
What error did Israel make?
1)He subtracted 6 before subtracting x.
2)He added 4 before squaring both sides.
3)He factored x2+ 7x + 10 incorrectly.
4)He did not check for extraneous solutions.
5) Violet was carrying around the steps to solve= 4. On her way through the Math Factory, Violet dropped them and they mixed with other steps. Put the correct steps in order to solve= 4.
First C, then E, then A= 4. On her way through the Math Factory, Violet dropped them and they mixed with other steps. Put the correct steps in order to solve= 4.
A. Subtract 1 from both sides
B. Subtract 4 from both sides
C. Square root both sides
D. Square both sides
E. Divide by 3 from both sides
F. Divide by 4 from both sides
1)First A, then E, then D
2)First D, then B, then A
3)First D, then A, then E
4)First C, then E, then A
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