Question

3. If x² + 4 = 29, then x? - 4 = ?
A. 5
B. V21
C. 21
D. 25

Answer 1

X²+4=29

Collect like terms

X²=29-4

X²=25

Take the square root of both sides to find the value of X

√X² = √25

X = 5

X - 4 =5 - 4=1