3 years ago

Some one factor 3x^2+7x-20

1 answer:

6 0

Split it up
3x^2+12x-5x-20
group
(3x^2+12x)+(-5x-20)
factor
(3x)(x+4)+(-5)(x+4)
undistribute (x+4) like ab+ac=a(b+c)
(3x-5)(x+4)

You might be interested in

Verify sin4 x- sin2x = cos4x – cos2x is an identity

Andrej [43]

Step-by-step explanation:

sin⁴ x − sin² x

Factor:

(sin² x) (sin² x − 1)

Pythagorean identity:

(1 − cos² x) (-cos² x)

Distribute:

-cos² x + cos⁴ x

cos⁴ x − cos² x

6 0

3 years ago

would Annabelle be able to pay off the loan with the lower montly payment in 5 years by setting aside $200 each month

NISA [10]

Answer:

Step-by-step explanation:

3 0

3 years ago

Dwayne hikes 60 miles in 3 days. At that rate, how many days does it take him to hike a total of 240 miles

NNADVOKAT [17]

12 days. 60 is a quarter of 240. So, multiply 60 by 4 to get 240.

7 0

3 years ago

Read 2 more answers

Grace and her father spent 4 1/2 hours over the weekend restoring their fishing boat. This time makes up 6% of the

solong [7]

$\frac{9}{2}$ multiplied by $\frac{6}{100}$
= 75 hours
4 and a half hour repairs 6% of the entire boat so it is
4 1/2 multiplied by 6/100's inverse number

6 0

3 years ago

Read 2 more answers

If a,b,c are in arithmetic sequence then a = ...

andriy [413]

Answer:

If a, b and c are in arithmetic progression, that means that a + c = 2b. So a + b, a + c and b + c are also in arithmetic progression.

This might help.

8 0

3 years ago

Read 2 more answers