andrealyn3744 andrealyn3744

22-06-2021
Mathematics

contestada

4x^2-400=0

square roots and solving quadratics

Respuesta :

Аноним Аноним

22-06-2021

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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