3 years ago

Use the grouping method to factor x^3+x^2+2x+2

Mathematics

1 answer:

Alexus [3.1K]3 years ago

6 0

Factor out common terms in the first two terms, then in the last two terms

x^2(x + 1) + 2(x + 1)

Factor out the common term x + 1

= (x + 1)(x^2 + 2)

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Step-by-step explanation:

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Complete the pairs of corresponding parts if AABD = AEFC. B

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Answer:

see explanation

Step-by-step explanation:

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3 years ago

9. 3x + 9y = 18 y = x + 2 Substitution method

777dan777 [17]

Answer:

x = 0

y = 2

Step-by-step explanation:

3x + 9y = 18 ---------eqn 1

y = x + 2---------eqn 2

Substitute eqn 2 into eqn 1, for the value of y

3x + 9( x + 2) = 18

3x + 9x + 18 = 18

12x + 18 = 18

12x = 18 -18

12x = 0

Divide both sides by 12 , to get the value of x.

12x/ 12 = 0/12

x = 0

Substitute x = 0 into eqn 2

y = x + 2

y = 0 +2

y = 2

Hint: to confirm the values

x = 0

y = 2

Let's take eqn 1 ,

3x + 9y = 18

3(0) + 9(2)

= 0 + 18

= 18

Correct

Let's take eqn 2

y = x + 2

Let's find y

y = 0 + 2

y = 2

Correct too

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3 years ago