Answer:
x = ±sqrt(40)
x = ±2 sqrt(10)
Step-by-step explanation:
x^2 = 40
Take the square root of each side
sqrt(x^2) = ±sqrt(40)
x = ±sqrt(40)
x = ±sqrt(4) sqrt(10)
x = ±2 sqrt(10)
Good evening ,
Answer:
x = √40 or x = -√40
Step-by-step explanation:
x² = 40 ⇌ x² - 40 = 0 ⇌ x² - (√40)² = 0 ⇌ (x - √40)(x + √40) = 0
⇌ x = √40 or x = -√40
