a2-a
a2-a
a(a-1)
x2-x-2
x2-x-2
(x+1)(x-2)
h2- 9
h2- 9
(h-3)(h+3)
A rectangle has the area of x2−11x+18. Identify the expressions that describe the perimeter of a rectangle?
x2−11x+18
(x-9)+(x-2)+(x-9)+(x-2)
4x -22
6m - 36n
6m - 36n
6(m-6n)
k2 -7k +12
k2 -7k +12
(k-3)(k-4)
c2 - 81
(c-9)(c+9)
BK Builders, wants to know the perimeter of an entire lot to build a home. The lot has an area of v2+13v+40. Using what you know identify the expressions for the perimeter of the entire lot.
v2+13v+40
(v+5)+(v+8)+(v+5)+(v+8)
4v+26
4k2+28k
4k2+28k
4k(k+7)
a2 -6a -27
a2 -6a -27
(a-9)(a+3)
z2 - 121
(z-11)(z+11)
The length of a rectangle is 8 more then the width. Its area is 240 ft sq. Write an equation for its area letting x be the width. Then solve for x and also find the length & factor. (hint: use the visual as a guide & the total area)
______x+8_______
l l
x l
l________________l
240 = x(x+8)
240 = x2+8x
0= x2+8x-240
(x-12)+(x+20)+(x-12)+(x+20)
4x+16
4v2n4+8vn3+10n2
4v2n4+8vn3+10n2
2n2(2v2n2+4vn+5)
p2 +17p+72
p2 +17p+72
(p+9)(p+8)
x2 - 225
x2 - 225
(x-15)(x+15)
Anne Flower shop is constructing a new garden. They purchased a new garden box and are unable to read the instructions due to them being to small. However they wanted to expand the instructions to the expression is y2-25y+154 where y represents feet. Find length & width of the expanded expression. Then use the length & width and create an expression that sums the perimeter if the box.
y2-24y+154
Length: (y-11) Width: (y-14)
Perimeter: 4y-50
6x2y+14xy2-42xy-2x2y2
6x2y+14xy2-42xy-2x2y2
2xy(3x+7y-21-xy)
w2-23w+132
w2-23w+132
(w-12)(w-11)
q2 - 400
q2 - 400
(q-20)(q+20)
Use the 400 Perimeter expression to find the total amount plan if y= 20ft .
Perimeter: 4y-50 y= 20ft
4(20)-50
total ft.= 30