Solve the following quadratic equation using the perfect square trinomial pattern: 64x2−80x+25=0

.(1 point)
Responses

x=0.625
x equals 0.625

x=−0.625
x equals negative 0.625

x=25
x equals 25

x=−25

1 answer

To solve the quadratic equation \(64x^2 - 80x + 25 = 0\) using the perfect square trinomial pattern, we first observe that the equation might be factored as a perfect square.

The general form of a perfect square trinomial is:

\[ (a - b)^2 = a^2 - 2ab + b^2 \]

In this case, let's rewrite the given equation:

\[ 64x^2 - 80x + 25 \]

This can be rearranged as:

\[ (8x)^2 - 2(8x)(5) + (5)^2 \]

This indicates it can be factored as:

\[ (8x - 5)^2 \]

Now, we rewrite the initial equation:

\[ (8x - 5)^2 = 0 \]

Next, we take the square root of both sides:

\[ 8x - 5 = 0 \]

Now we can solve for \(x\):

\[ 8x = 5 \ x = \frac{5}{8} \ x = 0.625 \]

Thus, the solution to the quadratic equation \(64x^2 - 80x + 25 = 0\) is:

x equals 0.625.