Answer:
its c
Step-by-step explanation:
Answer:
(x+1)(x-3i) (x+3i)
Step-by-step explanation:
x^3 + x^2 + 9x+9
We will use factor by grouping
Factor out x^2 from the first group and 9 from the second group
x^3 + x^2 + 9x+9
x^2( x+1) + 9(x+1)
Factor out (x+1)
(x+1) ((x^2+9)
Now factor x^2+9
x^2 -(3i)^2 = (x-3i) (x+3i)
Replacing this
(x+1)(x-3i) (x+3i)
Answer:
a) Area of a rectangle = length × width
Area = 6138cm²
Width = 62m
length = Area / width
length = 6138/62
length = 99m
b) Perimeter of a rectangle = 2l + 2w
l = length
w = width
perimeter = 338m
length = 98m
338 = 2(98) + 2w
2w = 338 - 196
2w = 142
w = 71m
width = 71m
Hope this helps.