I need help with this problem.
(7-x)(9-2x)
This is the answer I came up with. Please let me know if I'm right.
x^2-23*x+63
To solve the problem, you need to apply the distributive property and then combine like terms.
Let's work through it step by step.
(7 - x)(9 - 2x)
First, you need to multiply the first terms in each parenthesis:
7 * 9 = 63
Next, you multiply the outer terms:
7 * (-2x) = -14x
Then, you multiply the inner terms:
(-x) * 9 = -9x
Finally, you multiply the last terms:
(-x) * (-2x) = 2x^2
Now, let's combine all the terms you obtained:
63 - 14x - 9x + 2x^2
To simplify further, combine like terms:
63 - 23x + 2x^2
So, the expanded form of (7 - x)(9 - 2x) is 2x^2 - 23x + 63.
Your answer, x^2 - 23x + 63, is not correct. It seems like you may have mistakenly squared the variable x instead of multiplying it by itself. Just remember to distribute correctly and combine like terms to get the correct answer.