3 years ago

What is the product of the polynomials below?

2 answers:

8 0

Hi there! The answer is C.

$(5 {x}^{2} + 5x + 7)(8x + 6) = \\ work \: out \: parenthesis \\ \\ 40 {x}^{3} + 30 {x}^{2} + 40 {x}^{2} + 30x + 56x + 42 = \\ collect \: terms \\ \\ 40 {x}^{3} + 70 {x}^{2} + 86x + 42$

drek231 [11]3 years ago

6 0

The answer is C

40x3 + 70x2 + 86x + 42

You might be interested in

Use the quadratic formula to find the solutions for..<br> y = 2x^2 - 9x + 5.

Yakvenalex [24]

Answer: $x=\frac{9}{4}-\frac{\sqrt{41} }{4} \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}$

Step-by-step explanation:

$2x^2-9x+5$

a=2

b=-9

c=5

$x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}$

$x=\frac{-(-9)\frac{+}{}\sqrt{(-9)^2-4(2)(5)} }{2(2)}$

$x=\frac{9\frac{+}{}\sqrt{81-40} }{4}$

$x=\frac{9\frac{+}{}\sqrt{41} }{4}$

$x=\frac{9}{4}-\frac{\sqrt{41} }{4} \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}$

4 0

3 years ago

What expressions are equivalent to (a^2-16)(a+4)

Eddi Din [679]

Answer:

[(a)^2-(4^2)](a+4)

Step-by-step explanation:

7 0

2 years ago

What value of x makes this equation true <br> x/3 - 3 = x/9 + 3

Radda [10]

Answer:

27, you need to simplify both sides of the equation to get x on one side.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

AN ice cream factory makes 230 quarts of ie cream in 2 hours. how many quarts could be made in 12 hours?what was the rate per da

Lana71 [14]

it makes 2760 per 12 hours

4 0

2 years ago

200 students in a high school senior class are surveyed about what majors they intend to declare in college.

vekshin1

Answer:

2/5

1/2

3/20

3/4

Step-by-step explanation:

7 0

3 years ago