Question

A greenhouse that specializes in growing geraniums is divided into sections. The number of geranium pots in each section depends on the number of sprinklers in that section.

There are x(7x − 2) pots of red geraniums and (x + 3)2 pots of pink geraniums in a section with x sprinklers.

Which simplified expression represents the total number of red and pink geranium pots in a section with x sprinklers?

Answer 1

@phi

Answer 2

I got
8x2 + 4x + 9

Is that wrong?

Answer 3

@Ineedhelplz

Answer 4

What are your choices of answers?
@Dancergirl45

Answer 5

8x2 + 4x + 9
8x2 + 6x + 9
8x2 + 6x + 7
8x4 + 4x2 + 9

Answer 6

I had A

Answer 7

@phi am i correct?

Answer 8

I misread the answers, A is right...

Answer 9

yes

Answer 10

x(7x-2)+(x+3)^2
The answer would be 8x^2+4x+9
A is correct.

Answer 11

x(7x − 2) is 7x^2 - 2x
(x + 3)^2 = x^2 + 6x + 9
-------------
8x^2 +4x + 9

Answer 12

Thank you and with this one
(3x + 5)(5x − 1)

Which of the following simplified expressions represents the area of the floor of the library building in square meters?

28x − 5
15x2 − 5
15x2 + 28x − 5
15x2 + 22x − 5

Answer 13

I got D

Answer 14

is that correct?

Answer 15

Yes, that is correct.

Answer 16

I found this
http://openstudy.com/updates/4f3d8634e4b0cf389e29a16e

Answer 17

@phi

Answer 18

yes

Answer 19

using FOIL:
(3x + 5)(5x − 1)
First: 3x*5x = 15*x*x = 15x^2
Outer: 3x*-1 = -3x
Inner: 5*5x = 25x
Last: 5*-1 = -5

15x^2 +22x - 5