2. C. (x-2)(x-1)
3. B. -(x-8)(x+5)
4. A. 3
5. D. 5b
i hope this helps!
To factor an equation, break the polynomial into two binomials which multiply to make it. There are three main ways to factor:
Regular: Find two numbers that multiply to C and add to B from .
Grouping: Find two numbers that multiply to A*C and add to B. Then split B into the two factors and factor by GCF.
Difference of Squares: Factor by taking the square root of each term.
a square backyard with width (x - 9)
x²−18x + 81 = x² - (2 x 9) x + 9² = (x - 9)²
width = area / length = (x - 9)² / (x - 9) = x - 9
Length = width
This is a square backyard
The answer would be x-9. Hope this helps.
i do not know the answer