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MariettaO [177]
3 years ago
15

Iona wrote out the description of each step for her multiplication of the binomial and trinomial (2x – 3)(5x2 – 2x + 7)

Mathematics
2 answers:
Olin [163]3 years ago
7 0

Steps for multiplying the given binomial and trinomial (2x-3)\times (5x^{2}-2x+7) are:

Step 1: 2x\times (5x^{2}-2x+7)-3 \times (5x^{2}-2x+7)

Step 2: 10x^{3}-4x^{2}+14x-15x^{2}+6x-21

Step 3: 10x^{3}-19x^{2}+20x-21

Kisachek [45]3 years ago
6 0

Answer:

10x³ -19x² + 20x -21.

Step-by-step explanation:

Given : (2x – 3)(5x² – 2x + 7).

To find : wrote out the description of each step for her multiplication of the binomial and trinomial.

Solution : We have given

(2x – 3)(5x² – 2x + 7).

Step 1:  Distribute 2x over (5x² – 2x + 7) and - 3 over (5x² – 2x + 7).

2x (5x² – 2x + 7) - 3 (5x² – 2x + 7).

10x³ - 4x² + 14x - 15x² + 6x -21.

Step 2: Combine like terms

10x³ -  4x² - 15x² + 14x  + 6x -21.

Step 3:  Solve the like terms.

10x³ -19x² + 20x -21.

Therefore, 10x³ -19x² + 20x -21.

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Step-by-step explanation:

The answer is OPTION C

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First

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+. - +

A= [ 1 -1 -1 ]

[ -1 2 3 ]

[ 1 1 4 ]

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Find the co factor

| 2 3 | |-1 3 | |-1 2 |

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Readme [11.4K]

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Step-by-step explanation:

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Hence, the surface area of the given cylinder = 569.91\ ft^2

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