soupysophie
soupysophie soupysophie
  • 08-05-2020
  • Mathematics
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Scratchpad
Explain in your own words how to solve the following quadratic equation using square roots.
(2x – 9)2 = 49

Respuesta :

KingEj7
KingEj7 KingEj7
  • 08-05-2020

Answer: x = 16.75

Step-by-step explanation:

I'm not good at square roots but if you divide both sides by 2:

(2x – 9) • 2 / 2 = 49 / 2

simplify:

2x – 9 = 49/2

add 9 to both sides:

2x – 9 + 9 = 49/2  +  9

simplify:

2x = 67 / 2

divide both sides by 2:

2x ÷ 2 = 67/2 ÷ 2

simplify:

x = 67/4

Answer:

x = 16.75

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