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Mathematics
Irite fact if the equation is quadratic ar luff if the equation is not quadratic.
a. x 2 + x 3 = 0 x^(2)+x-3=0
b. 24 x + 81 = x 2 24 x+81=x^(2)
c. x 2 = 2 x ( 6 x 2 + 4 ) x^(2)=2x(6x^(2)+4)
d. 2 x 2 = 7 x 2x^(2)=7x
e. 5 x + ( 2 x 3 ) = 12 5-x+(2x-3)=12
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a. Quadratic because it has a degree of 2.
b. Quadratic because it can be written as x 2 24 x 81 = 0 x^(2)-24 x-81=0.
c. Quadratic because it can be simplified to x 2 12 x 8 = 0 x^(2)-12 x-8=0.
d. Quadratic because it can be written as 2 x 2 7 x = 0 2x^(2)-7x=0.
e. Not quadratic because it can be simplified to 2 x = 10 2x=10 or x = 5 x=5, which is a linear equation.
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