Solve the equation by completing the square

r=18 or r= -4

Step-by-step explanation:

Please see attached picture for full solution.

Before completing the square, ensure that the coefficient of r^2 is 1 and bring all the terms to the left hand side. In this case, we do not have to do this as it is already done.

Since the sign before '14r' is a negative sign, use the formula as shown in the first picture.

We know that the value of 'b' in the formula is 7 because 2(r)(b)= 14r. Hence,

2b= 14

b= 7

Step 5: remember to add '±' whenever you introduce a square root.

when studying polynomials, you often hear the terms zeros, roots, factors and x x the multiplicity of a zero is important because it tells us how the graph of the let's look at the graph of a function that has the same zeros

step-by-step explanation:

594 square inches

step-by-step explanation:

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