check whether the following equation is quadratic equation.
1) 3x^2-5x+7=x(x-4)
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Step-by-step explanation:
This, is a quardtic polynomial
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Answer:
x = 1 + - √ - 55 ÷ 4
Step-by-step explanation:
3 x ^ 2 - 5 x + 7 = x ( x - 4 )
3 x ^ 2 - 5 x + 7 = x ^ 2 - 4 x
3 x ^ 2 - 5 x + 7 - x ^ 2 + 4 x = 0
2 x ^ 2 - 5 x + 7 - x ^ 2 + 4 x = 0
2 x ^ 2 - x + 7 = 0
a = 2 , b = - 1 , c = 7
x = - b + - ✓ b ^ 2 - 4 a c ÷ 2 a
x = - ( - 1 ) + - √ ( - 1 ) ^ 2 - 4 ( 2 ) ( 7 ) ÷ 2 ( 2 )
x = 1 + - √ 1 - 56 ÷ 4
x = 1 + - √ - 55 ÷ 4
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