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01-10-2020
Mathematics

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Simplify(7x2 + 5) ( x – 3) + 2x( 3x – 4)

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Meya2000 Meya2000

01-10-2020

Answer:

11x + 6x^2 -57

Step-by-step explanation:

(7x2 + 5)(x - 3) + 2x (3x - 4)

1. Multiply 7x2

(14 + 5)(x - 3) + 2x (3x - 4)

2. Add 14+5

(19)(x - 3) + 2x (3x - 4)

3. Distribute 2x to 3x-4

(19)(x - 3) + 6x^2 - 8x

4. Distribute 19 to x-3

19x - 57 + 6x^2 - 8x

5. Simplify.

11x + 6x^2 -57

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