3 years ago

Factor the expression. 21x^2 + 43x + 20

Mathematics

2 answers:

liq [111]3 years ago

6 0

Hello,

$21x^2 + 43x + 20\\
=21x^2+28x+15x+20\\
=7x(3x+4)+5(3x+4)\\
=(3x+4)(7x+5)\\

Answer B$

krok68 [10]3 years ago

3 0

Each choice has 7x and 3x which multiply to 21x^2.
The original trinomial has positive 20 and positive 43, so all factors of 21 and of 20 must be positive.
Only choice B has all positive terms, so choice B must be the answer.

You might be interested in

Is 8m-4m+4m and 8m equivalent?

marta [7]

Answer:

Step-by-step explanation:

good luck

follow me for more

8 0

3 years ago

Jayesh is looking into joining a gym. He has a budget of $65 per month. The gym he wants to join has fees based on the number of

puteri [66]

Number of visits can be only a whole number, the solution should be 9 visits

8 0

3 years ago

Hardest questions please help<br> Please

Nonamiya [84]

Banalties for the second question i think!

7 0

3 years ago

Read 2 more answers

Marking brainliest <br><br> In your own words, what does freedom mean to you?

antiseptic1488 [7]

Freedom to me means that you have the power to speak and act in the way you want as long as you are not breaking any laws or already in trouble with the law

8 0

3 years ago

What is c h (x)? c(x)=5x+2 h(x)=3x Write your answer as a polynomial or a rational function in simplest form.

Ann [662]

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

Step-by-step explanation:

3 0

3 years ago