Question

I am very confused please solve and explain.

Answer 1

Answer:

c = $\frac{b^2-R^2}{4a}$

Step-by-step explanation:

Given

R= $\sqrt{b^2-4ac}$

Clear the radical by squaring both sides

R² = b² - 4ac ( subtract b² from both sides )

R² - b² = - 4ac ( multiply all terms by - 1 )

b² - R² = 4ac ( divide both sides by 4a )

$\frac{b^2-R^2}{4a}$ = c

Answer 2

Answer:

c=$\frac{b^2-R^2}{4a}$

Step-by-step explanation:

First, get rid of the square root by squaring both sides:$R^{2}$=$b^{2}$-4ac

Next, add 4ac to both sides: 4ac+$R^{2}$=$b^{2}$

Then, subtract $R^{2}$ from both sides: 4ac=$b^{2}$-$R^{2}$

Finally, divide both sides by 4a to get your answer: c=$\frac{b^2-R^2}{4a}$