Q: X squared plus 7X equals zero?

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63828

14x

No, It's a a quadratic equation because you have X squared.

http://authors.library.caltech.edu/25030/7/05_Calc1_Chapter2w.pdf visit.

x2 - 7x + 6 = 0(x - 6)(x - 1) = 0x = 6, x = 1

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63828

It equals 53X- a number is squared when it is multiplied by itself, so 7X by 7X = 49X. 2X by 2X =4X, so 49X + 4X is 53X.

14x

No, It's a a quadratic equation because you have X squared.

if its x(squared) its 7x(cubed) if its 2xX its 14x(squared)

7(3y-2)-(-4y+9)

http://authors.library.caltech.edu/25030/7/05_Calc1_Chapter2w.pdf visit.

49/4 or 12.25

x2 - 7x + 6 = 0(x - 6)(x - 1) = 0x = 6, x = 1

5x2+7x = 12 5x2+7x-12 = 0 (5x+12)(x-1) = 0 x = -12/5 or x = 1

y = 3x + 21x2 = 3x(1 + 7x)

63x2+76x+21 = 0 (7x+3)(9x+7) = 0 x = -3/7 or x = -7/9