Discover the best answers at Westonci.ca, where experts share their insights and knowledge with you. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

Solve for [tex]$x$[/tex]:

[tex]
2^{x^2 - 53x + 25} = 32^{2 - 9x}
[/tex]


Sagot :

Let's solve the equation step-by-step.

Given:
[tex]\[ 2^{x^2 - 53x + 25} = 32^{2 - 9x} \][/tex]

First, recognize that [tex]\(32\)[/tex] can be written in terms of a base of [tex]\(2\)[/tex] since [tex]\(32 = 2^5\)[/tex]. Thus, the equation can be rewritten:

[tex]\[ 2^{x^2 - 53x + 25} = (2^5)^{2 - 9x} \][/tex]

Next, apply the power of a power rule [tex]\((a^m)^n = a^{mn}\)[/tex]:

[tex]\[ 2^{x^2 - 53x + 25} = 2^{5(2 - 9x)} \][/tex]

Since the bases are the same, we can set the exponents equal to each other:

[tex]\[ x^2 - 53x + 25 = 5(2 - 9x) \][/tex]

Expand the right-hand side:

[tex]\[ x^2 - 53x + 25 = 10 - 45x \][/tex]

Move all terms to one side of the equation to set it to zero:

[tex]\[ x^2 - 53x + 25 - 10 + 45x = 0 \][/tex]

Simplify the equation:

[tex]\[ x^2 - 8x + 15 = 0 \][/tex]

This is a quadratic equation. Use the quadratic formula [tex]\(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\)[/tex], where [tex]\(a=1\)[/tex], [tex]\(b=-8\)[/tex], and [tex]\(c=15\)[/tex]:

[tex]\[ x = \frac{-(-8) \pm \sqrt{(-8)^2 - 4 \cdot 1 \cdot 15}}{2 \cdot 1} \][/tex]

Calculate the discriminant:

[tex]\[ x = \frac{8 \pm \sqrt{64 - 60}}{2} \][/tex]

[tex]\[ x = \frac{8 \pm \sqrt{4}}{2} \][/tex]

[tex]\[ x = \frac{8 \pm 2}{2} \][/tex]

This gives us two solutions:

[tex]\[ x = \frac{8 + 2}{2} = 5 \quad \text{and} \quad x = \frac{8 - 2}{2} = 3 \][/tex]

Thus, the solutions to the equation are:

[tex]\[ \boxed{3 \text{ and } 5} \][/tex]