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3 years ago

How do you factor 2x^2+x-3

1 answer:

7 0

Find the factors of -3:
1,-3 and 3,-1

which ever adds up to 1 multiplied by 2

the answer is (2x+3)(x-1)

hope this helps

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What is the next number? 2+3=8 3+7=27 4+5=32 5+8=60 6+7=72 7+8=?

ale4655 [162]

Answer:

Step-by-step explanation:

2 + 3 = 8

8 : 2 = 4; 4 - 1 = 3 (subtract 1)

3 + 7 = 27

27 : 3 = 9, 9 - 2 = 7 (subtract 2)

4 + 5 = 32

32 : 4 = 8; 8 - 3 = 5 (subtract 3)

5 + 8 =60

60 : 5 = 12, 12 - 4 = 8 (subtract 4)

6 + 7 = 72

72 : 6 = 12, 12 - 5 = 7 (subtract 5)

7 + 8 = x

x : 7 = y, y - 6 = 8 (subtract 6)

Solve:

y - 6 = 8 add 6 to both sides

y - 6 + 6 = 8 + 6

y = 14

x : 7 = y ⇒ x : 7 = 14 ⇒ x = (14)(7) ⇒ x = 98

8 0

3 years ago

What is 2.95 expressed as a fraction?

Kaylis [27]

B or c because its lower than the denominator

8 0

3 years ago

Read 2 more answers

(2x+3y) + (5x+3y) = 4 +-8

Artist 52 [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

True or False ?

Gnoma [55]

True the answer is true babes :)

4 0

3 years ago

To the nearest whole number, what is the surface area of a sphere with a volume of 140 cm³?

rjkz [21]

The answer to this question is B. 130cm^2.

Using the volume formula for a sphere (V = (4/3)πr^3) you can plug in the values that we know to find the radius to be around 3.22117 cm. You can then use the area of a sphere formula (A = 4πr^2) to find the area. Hope this helps :)

6 0

3 years ago