Question

5. Multiply. (3x + 5)(3x – 5) (1 point)
9x2 – 30x – 25
9x2 + 30x + 25
9x2 – 25
9x2 + 25
6. The area of a rectangular painting is given by the trinomial x2 – 5x – 36. What are the possible dimensions of the painting? Use factoring. (1 point)
(x + 9) and (x – 4)
(x + 9) and (x + 4)
(x – 9) and (x – 4)
(x – 9) and (x + 4)

Answer 1

FOIL

Answer 2

for number 5

Answer 3

(3x)(3x)+(3x)(−5)+(5)(3x)+(5)(−5)

Answer 4

i dont know how to do that

Answer 5

thats
3x times 3x

Answer 6

*whats

Answer 7

9

Answer 8

Once you multiply you get this
9x2−15x+15x−25

Answer 9

Combine LIKE TERMS

Answer 10

is it 9x2 – 30x – 25

Answer 11

no -15+15 = 0

Answer 12

9x2−25

Answer 13

5 answer 9x2 – 25

Answer 14

x2 – 5x – 36.
What numbers multiply to get -36 and add to -5

Answer 15

the question in the form (a+b)(a-b)=a^2-b^2
similarly (3x+5)(3x-5)=(3x)^2-5^2

Answer 16

nice @pooja195