4x^2-400=0 square roots and solving quadratics

Mathematics

1 answer:

posledela3 years ago

8 0

Answer:

x = ±10

Step-by-step explanation:

4x² - 400 = 0

Add 400 to both sides

4x² = 400

Divide both sides by 4

x² = 100

Take the square root of both sides

x = ±10

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