Remember you can do anything to an equation as long as you do it to both sides
expand by foiling or distributing
4x²-19x-5=-43x-41
add 43x to both sides and add 41 to both sides
4x²+24x+36=0
factor
facotr out of 4
4(x²+6x+9)=0
factor inside
what 2 numbers multiply to get 9 and add to get 6?
3 and 3
4(x+3)(x+3)=0
set to 0
x+3=0
x=-3
x=-3 is answer
18a: 3*3*3*2*a
20a: 2*2*5*a
6a: 3*2*a
the greatest common factor is 2a
Answer:
1/10
Step-by-step explanation:
first you find the common denominator.
multiply 1/2 by 5 and 2/5 by 2
now you have 5/10-4/10
now its easy and the answer is 1/10
Step-by-step explanation:
Area of shaded region = area of exterior rectangle - area of interior rectangle
