3 years ago

What is 5x^2+4x=80 times x^2-5x-24=0

1 answer:

8 0

(5x²+4x-80)(x²-5x-24)=5x²(x²-5x-24)+4x(x²-5x-24)-80(x²-5x-24)
{distributive property of multiplication}
=5x^4-25x³-120x²+4x³-20x²-96x-80x²+400x+1920
=5x^4-21x³-220x²+304x+1920
This is the answer.

You might be interested in

A triangle has the side lengths 5, 7, and 11. Which term best describes the triangle?

Pavlova-9 [17]

It is a scalene triangle bc it has no equal sides

4 0

3 years ago

$1400 deposit that earns 10% annual interest compounded semiannually

____ [38]

Answer:Does this helpf(t) = 1400(1 + (0.1)/2))2t

Step-by-step explanation:

3 0

3 years ago

Bonnie deposits $70.00 into a new savings account. The account earns 45 % simple interest per year , s added or removed from the

nordsb [41]

Answer:

$\$164.5$

Step-by-step explanation:

Bonnie deposits $70.00 into a new savings account.

The account earns 45% simple interest per year.

She neither added or removed from the savings account for 3 years.

We know that,

$i=\dfrac{P\cdot r\cdot r}{100}$

here,

i = interest,

P = principal = $70,

r = rate of interest = 45%,

t = time = 3 years,

Putting the values,

$i=\dfrac{70\cdot 45\cdot 3}{100}=\$94.5$

So the total amount will be,

$=\text{Principal}+\text{Interest}$

$=70+94.5$

$=\$164.5$

6 0

3 years ago

Read 2 more answers

If you can buy 1⁄3 of a pound of turkey for 4 dollars, how much can you purchase for 10 dollars? Write your answer as a fraction

gulaghasi [49]

The answer is 5/6 of a pound.

3 0

3 years ago

Read 2 more answers

Find the sum of the sequence 37+38+39+40+...130

goblinko [34]

The sum is of37+38+39+40+...130 is 154.13

7 0

4 years ago

Read 2 more answers