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Ltd say we're given the quadratic equation x + 2x2 - 4 = -7x + 6

Enter your answers separated by a comma

Ltd Say Were Given The Quadratic Equation X 2x2 4 7x 6 Enter Your Answers Separated By A Comma class=

Sagot :

evasiwila

Answer:

x=1 ,x= -5

Step-by-step explanation:

x+2x2-4=-7x+6

2x2+x+7x-4-6=0

2x2+8x-10=0

divide through out by 2 to reduce the equation

x2+4x-5=0

by using formula method

x=[-b+\-√b2-4ac]/2a. a=1, b=4 c=-5

x=[-4+\-√4^2-4*1*-5]/2*1

x=[-4+\-√16+20]/2

x=[-4+\-√36]/2

x=[-4+\-6]/2

x=(-4+6)/2 ,x=(-4-6)/2

x=2/2 , x=-10/2

x=1 , x=-5

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