2 years ago

Mark is solving the equation 4x2 + 2x = -9 using the quadratic formula.

1 answer:

6 0

4x^2 + 2x = -9
4x^2 + 2x + 9 = 0

remember that the form of quadratic is ax^2 + bx + c = 0

so
a = 4
b = 2
c = 9

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