savitar0291 savitar0291
  • 14-05-2020
  • Mathematics
contestada

Help me please I really need help!

Help me please I really need help class=

Respuesta :

Chelboy
Chelboy Chelboy
  • 14-05-2020

Answer:A

Step-by-step explanation:

4x^2+7=25

Collect like terms

4x^2=25-7

4x^2=18

Divide both sides by 4

4x^2/4=18/4

x^2=9/2

Take the square root of both sides

x=√(9/2)

x=3/√(2)

multiply the answer by √2/√2

x=3/√(2) x √2/√2

x=3√(2)/√(4)

x=3√(2)/2

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