Mathematics
23.12.2022 03:28
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A student performed the following steps to find the solution to the equation x2
A student performed the following steps to find the solution to the equation
x2 + 4x -12=0 Where did the student go wrong?
Step 1. Factor the polynomial into (x+6) and (x-2)
Step 2. X-6 = 0 and x + 2 = 0
Step 3. x = 6 and x = -2
A. in Step 2
B. in Step 1
C. in Step 3
D. The student did not make any mistakes, the solution is correct
Show Answers
Step 1. Factor the polynomial into (x+6) and (x-2)
Step 2. X-6 = 0 and x + 2 = 0
Step 3. x = 6 and x = -2
A. in Step 2
B. in Step 1
C. in Step 3
D. The student did not make any mistakes, the solution is correct
blessing5266
5,0(55 marks)
Step 2.
Step-by-step explanation:
Step 2. In step 1, they correctly wrote the factors of the polynomial as (x+6) and (x-2). But then in step 2, (x+6) suddenly became (x-6) and (x-2) became (x+2), which is incorrect.
The answers in step 3 should have been -6 and 2.
darianhaynes
4,6(55 marks)
1 = 75
because 38 + 67 + 75 = 180 (remember a triangle is 180 degrees)
2 = 75
opposite angles are always the same.
3. 57
because 75 + 38 + 57 = 180
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