Solve the following equation by first writing the equation in the form a x squared = c: t squared minus 49 = 0
a.
t = 49
b.
t = plus-or-minus 49
c.
t = 7
d.
t = plus-or-minus 7

The Quadratic Formula: Given a quadratic equation in the following form:

ax2 + bx + c = 0

...where a, b, and c are the numerical coefficients of the terms of the quadratic, the value of the variable x is given by the following equation:

\small{ x = \dfrac{-b \pm \sqrt{b^2 - 4ac\phantom{\big|}}}{2a} }x=  

2a

−b±  

b  

2

−4ac  

∣

∣

∣

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Step-by-step explanation:

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78.59 is the mean

step-by-step explanation: