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Grace [21]
3 years ago
12

(4x-3)(2x^2-7x+1) what is the product of this please help!

Mathematics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

8x^{3}-34x^{2}+25x-3

Step-by-step explanation:

In order to solve this problem, lets take the two terms in the binomial (4x and -3) and, for each one, multiply them by each term in the trinomial (2x^2, -7x, and 1):

(4x-3)(2x^{2}-7x+1)

(4x*2x^{2})+(4x*-7x)+(4x*1)+(-3*2x^{2})+(-3*-7x)+(-3*1)

8x^{3}+(-28x^{2})+4x+(-6x^{2})+21x+(-3)\\

8x^{3}-28x^{2}+4x-6x^{2}+21x-3

Let's combine like terms to get our final answer:

8x^{3}-28x^{2}-6x^{2}+4x+21x-3

8x^{3}-34x^{2}+25x-3

You might be interested in
A group of 86 people consist of men women and children. There are twice as many women then there are men. There are 6 more child
weqwewe [10]

Answer: 16 men

32 women

38 children

Step-by-step explanation:

Let x represent the number of men in the group.

Let y represent the number if women in the group.

Let z represent the number of children in the group.

A group of 86 people consist of men women and children. This means that

x + y + z = 86 - - - - - - - - - - - - 1

There are twice as many women than there are men. It means that

x = y/2

There are 6 more children than there are women. This means that

z = y + 6

Substituting x = y/2 and z = y + 6 into equation 1, it becomes

y/2 + y + y + 6 = 86

multiplying through by 2, it becomes

y + 2y + 2y + 12 = 172

5y = 172 - 12 = 160

y = 160/5 = 32

x = y/2 = 32/2

x = 16

z = y + 6 = 32 + 6

z = 38

8 0
3 years ago
Solve the equation 2<br> 16x + 20 = 0 to the nearest tenth.
Alenkasestr [34]

Answer:

x ≈ - 1.3

Step-by-step explanation:

16x + 20 = 0

16x + 20 - 20 = 0 - 20

16x = - 20

16x ÷ 16 = - 20 ÷ 16

x = - 1.25

x=-1\frac{1}{4}

- 1.25 rounds to - 1.3

3 0
3 years ago
Read 2 more answers
Help help help please !!
suter [353]

Answer:

\frac{40}{41}

Step-by-step explanation:

Sin = opposite / hypothenuse

Sin A = 40 / 41

Answer: \frac{40}{41}

6 0
2 years ago
Read 2 more answers
WE has endpoints at<br>W(10, 2) and E(5, -3).<br>How long is WE?​
s2008m [1.1K]

Answer:

WE=5\sqrt{2}

Step-by-step explanation:

Distance between two points:

The distance between (x_1,y_1) and (x_2,y_2) is given by=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2

Hence distance between W(10,2) and E(5,-3)

WE=\sqrt{(5-10)^2+(-3-2)^2}=\sqrt{(-5)^2+(-5)^2}=\sqrt{25+25}\\\\WE=\sqrt{50}=5\sqrt{2}

8 0
3 years ago
-5(x + 6) &gt; 3 (x + 13) - 5<br>all possible solutions​
VARVARA [1.3K]

Answer: x< -8

Step-by-step explanation:

-5(x + 6) > 3 (x + 13) - 5

-5x -30>(3x + 39)-5

-5x -30> 3x +34

i will put the rest in the comments

5 0
3 years ago
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