4 years ago

How do you solve X squared equals 40

Mathematics

2 answers:

Simora [160]4 years ago

7 0

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

Anna11 [10]4 years ago

4 0

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)

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