Find the mistake, then find the correct answer.Solve for x: x2 = 45line 1 
= 
line 2 x = 3
What will be an ideal response?
Line 2 gave only the positive square root. The correct answer is x = ±3
.
You might also like to view...
Factor by grouping.m3 + 3m2p2 - 6mp - 18p3
A. (m + 3p2)(m3 - 6p) B. (m + 3p2)(m2 - 6p) C. (m2 + 3p2)(m - 6p) D. (m - 3p2)(m2 - 6p)
Solve the problem.A triangular shaped lake-front lot has a perimeter of 1500 ft. One side is 100 ft longer than the shortest side, while the third side is 200 ft longer than the shortest side. Find the lengths of all three sides.
A. 100 ft, 200 ft, 300 ft B. 400 ft, 500 ft, 600 ft C. 500 ft, 600 ft, 700 ft D. 500 ft, 500 ft, 500 ft
Solve the inequality by using the graph of the function.f(x) > 0, where f(x) = (x + 3)(x - 1)2.
A. (-3, -1) ? (-1, ?) B. (-?, ?) C. (-3, ?) D. (-3, 1) ? (1, ?)
In the problem, sin ? and cos ? are given. Find the exact value of the indicated trigonometric function.sin ? = 
, cos ? = 
Find sec ?.
A. 
B. 
C. 
D. 4