+ 3n and a
A rectangle has a height of n + 4
width of +5n2
Express the area of the entire rectangle
Your answer should be a polynomial in standard
Area =

y=mx+b

step-by-step explanation:

m slope

b y-intercept

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

unless if u could do my questions, if not i wouldn't want to

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15