Simplify the following expression. (3 + 8x) + 7x 3 +15 18 + x 11x+7 18 x​

3 plus 15x should be the correct answer.

Step-by-step explanation:

hope this helped

3+8x+7x3+1518+x11x+718x

=3+8x+7x3+1518+x12+718x

Step-by-step explanation:

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.