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gogolik [260]
3 years ago
11

X2 +10x + 21 I need to factor the

Mathematics
1 answer:
Ber [7]3 years ago
4 0

Answer:

(x + 7)(x + 3).

Step-by-step explanation:

x^2 +10x + 21

21 = 7 * 3 and 10 = 7 +3

so the factors are

(x + 7)(x + 3).

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saw5 [17]

The above expression is not in its simplest form, and we need to simplify it, that is what asked in the question.

Given equation,

(9 {x}^{2}  - 3x + 7) + ( - 3 {x}^{2}  + 2)

First of all, let's open the parentheses to combine the like terms for simplifying.

9 {x}^{2}  - 3x + 7 - 3 {x}^{2}  + 2

Arranging the like terms, x² with x², x with x and constant terms near to each other.

9 {x}^{2}  - 3 {x}^{2}  - 3x + 7 + 2

Simplying further,

(9 - 3) {x}^{2}  - 3x + 9

6 {x}^{2}  - 3x + 9

So, the correct option is C

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Answer:

S = 50w + 75

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