Question

Determine whether the two equations are equivalent. x² =49,x=7

Answer 1

They are close to equivalent, but x = -7 is missing from the solution set.

x² = 49

(-7)² = 49

(-7)*(-7) = 49

49 = 49

The two negatives cancel to form a positive.

Answer 2

They are equivalent

Explanation:

x² means x multiplied by itself or the square root of the number, and the square root of 49 is 7 (7 x 7 = 49).

A.H. -PG