Answer:
21x^2-2x+1
Step-by-step explanation:
The area of shaded region= The area of the floor - area of the identical islands
The area of shaded region=(5x+1)^2-2*(2x)(x+3)=25x^2+1+10x-4x^2-12x=21x^2-2x+1
Answer:
The answer for this question is C
The answer is 40 is 80% of 50 ☺
-2-3x=3+1x
-2-3=1x+3x
-5=4x
x=-1.25
