<span>x cubed +3x squared - 4x= 0
= x^3 + 3x^2 -4x = 0
=x(x^2 +3x -4) = 0
= x (x+4)(x-1) = 0
x = 0
x+ 4 = 0 then x = -4
x - 1 = 0 then x = 1
answer: x = 0, x = -4 and x = 1</span>
Answer:
C
Step-by-step explanation:
This should help-
Triangle Total angle measures = 180
Right angle= 90
Line = 180
Answer:
no lol
Step-by-step explanation:
Answer:
Step-by-step explanation:
a) Set up the variables:
Let <u>x</u> represent the width; Then <u>2x</u> will represent the length.
b) What is the equation that represents the above situation?
<u>Use perimeter formula:</u>
As we set up w = x and l = 2x, and we know that the perimeter is 30 cm, we can build an equation by substituting the values we know or set up:
c) solve the equation
- 30 = 2( 2x + x)
- 30 = 2(3x)
- 30 = 6x
- x = 30/6
- x = 5
d) the length and width are?
- The width is 5 cm and the length is twice the width, 5*2 = 10 cm
