All categories

4 years ago

Expand and combine like terms. (2x^4+3x^3)(2x^4-3x^3)

Mathematics

1 answer:

Juli2301 [7.4K]4 years ago

7 0

Step-by-step explanation:

Use the form (a + b)(a - b) = a^2 - b^2:

(2x^4 + 3x^3)(2x^4 - 3x^3) = 4x^8 - 9x^6.

You might be interested in

Find the product of -9 and-3

Sidana [21]

Negatives cancel =27

6 0

4 years ago

Read 2 more answers

The number of watermelon seeds in the original watermelon is 500. The second watermelon has 5% more. How many seeds are in the s

Anarel [89]

Answer:

Step-by-step explanation:

500seeds+25seeds=525seeds

5 0

3 years ago

Read 2 more answers

Solve this in distributing -(5.3x-7y)-9.6

algol13

Answer:

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

Step-by-step explanation:

Given the expression

$-\left(5.3x-7y\right)\times \left(-9.6\right)$

$=-\left(-9.6\right)\left(5.3x-7y\right)$

Apply distributive law

$a\left(b-c\right)=ab-ac$

$a=-\left(-9.6\right),\:b=5.3x,\:c=7y$

so the expression becomes

$=-\left(-9.6\right)\times \:5.3x-\left(-\left(-9.6\right)\right)\times \:7y$

$=-\left(-9.6\right)\times \:5.3x+7\left(-9.6\right)y$ ∵ $-\left(-a\right)=a$

$\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a,\:-\left(-a\right)=a$

$=9.6\times \:5.3x-7\times \:9.6y$

$=50.88x-7\times \:9.6y$

$=50.88x-67.2y$

Therefore,

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

3 0

3 years ago

Who can help me please

denis23 [38]

To number 1 your answer is 100 + 5x < 300 because she wants to spend less than 300 and has to pay 5 dollars per hour, x, along with 100 for the day. to number 2 your answer is x < 40 bc when you subtract 100 from both sides you get 5x < 200 then divide both sides by 5 getting you x < 40

4 0

3 years ago

Read 2 more answers

PLZ HELP

slamgirl [31]

Answer:

6 hours

Step-by-step explanation:

2x6=12

3 0

3 years ago

Read 2 more answers