which of the following is a quadratic equation?a.x+4=0 b.2x=x²+1 c.x²+4x d.x+y=-...

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August 2022 2 2 Report

which of the following is a quadratic equation?

a.x+4=0
b.2x=x²+1
c.x²+4x
d.x+y=-4

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nurlaylaindanan

Which of the following is a quadratic equation?

Answer:

Letter B

Step-by-step explanation:

B. 2x=X²+1

Hope it help

zeinsamantha209 thanks po ng marami ^_^

princessbear884 Thank you po

nurlayla WC

huyitianandshenyue27

which of the following is a quadratic equation?

a.x+4=0

b.2x=x²+1

c.x²+4x

d.x+y=-4

ANSWER :

B. 2x=x^2+1

Step-by-step explanation:

$2x = {x}^{2} + 1 \\ \\ 2x - {x}^{2} - 1 = 0 \\ \\ - {x}^{2} + 2x - 1 = 0 \\ \\ {x}^{2} - 2x + 1 = 0 \\ \\ x = \frac{ - ( - 2) ± \sqrt{( - 2 {)}^{2} - 4 \times 1 \times 1} }{2 \times 1} \\ \\ x = \frac{2± \sqrt{0} }{2} \\ \\ x = \frac{2±0}{2} \\ \\ x = \frac{2}{2} \\ \\ x = 1$

hope it's help

keep safe healthy and study well

zeinsamantha209 thanks po ng marami^_^

huyitianandshenyue27 welcome... always po... ^_^

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ANSWER :

B. 2x=x^2+1

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