Answer:D
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
x² + 8x = 4 ⇔ x² + 8x + 16 = 4 + 16 ⇔ x² + 2×4x + 4² = 20 ⇔ (x + 4)² = (2√5)²
Remark : (2√5)² = 20
Answer:
248
Step-by-step explanation:
Answer:
The square root of 3
Step-by-step explanation:
The other ones equal a number Ex Square root of 16 is 4 but the square root of 3 would be a large decimal