Answered

Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Discover comprehensive solutions to your questions from a wide network of experts on our user-friendly platform. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

Simplify the expression: [tex](x+9)(x-9)[/tex]

A. [tex]2x^2 - 81[/tex]
B. [tex]x^2 - 18[/tex]
C. [tex]2x - 18[/tex]
D. [tex]x^2 - 81[/tex]

Sagot :

GinnyAnswer
To simplify the expression [tex]\((x+9)(x-9)\)[/tex], we can use the difference of squares formula. The difference of squares formula states that:

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

Here, [tex]\(a = x\)[/tex] and [tex]\(b = 9\)[/tex]. Applying the formula, we get:

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

Now, calculate [tex]\(9^2\)[/tex]:

[tex]\[ 9^2 = 81 \][/tex]

So, the expression simplifies to:

[tex]\[ x^2 - 81 \][/tex]

Therefore, the correct answer is:

[tex]\[ \boxed{d. \ x^2-81} \][/tex]
24d2fr6j8n
The answer is B
X squared-18
We appreciate your time. Please come back anytime for the latest information and answers to your questions. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.