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ANEK [815]
3 years ago
9

15 POINT QUESTION! Multiply and simplify. (4x−2)(3x^2−2x+1)

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0
To answer this, first, you need to multiply the first bracket to the second bracket. Then, it will show like this: 4x(3x^2)-4x(2x)+4x(1)-2(3x^2)-2(-2x)-2(1)= 12x^3-8x^2+4x-6x^2+4x-2.
Then simplify them by adding or subtracting the same objects (same exponents and same variables). If they don't have the same objects, just let them be.
The final answer will be: -12x^3-14x^2+8x-2
Crazy boy [7]3 years ago
6 0
<span>The correct answer is 12x</span>³<span>-14x</span>²<span>+8x-2.

Explanation:
We use the distributive property:
4x*3x</span>² <span>- 4x*2x + 4x*1 - 2*3x</span>² <span>- 2*(-2x) - 2*1 = 12x</span>² <span>- 8x</span>² <span>+ 4x - 6x</span>² <span>+ 4x - 2.

Combining like terms, we have 12x</span>³<span>-14x</span>²<span>+8x-2.</span>
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Simplify the expression left parenthesis (3/5)2
koban [17]
6 because if you multiply (3/5)2 you get 6
8 0
3 years ago
The point-slope form of a line that has a slope of –2 and passes through point (5, –2) is shown below.
Ilya [14]

Answer:

y =-2x+8

Step-by-step explanation:

We have a point and a slope

(5,-2)  and m =-2

The slope intercept form of a line is

y = mx+b

y = -2x+b

Substitute in the point

-2 = -2(5)+b

-2 = -10+b

Add 10 to each side

-2+ 10 = -10+10 +b

8 = b

The equation is

y =-2x+8

8 0
3 years ago
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A tortoise is walking in the desert. It walks at a speed of 2 meters per minute for 2.56 meters. For how many minutes does it wa
zaharov [31]

distance = rate * time

2.56 meters = 2meter/min * t

divide by 2 on each side

2.56/2 =t

1.28 minutes =t

8 0
3 years ago
Find each measure m&lt;1, m&lt;2,m&lt;3
Leno4ka [110]

Answer:

option 2.

m1 = 75    ,   m2 = 129   ,   m3 = 100

Step-by-step explanation:

with the rule that the internal angles of a triangle add up to 180 ° we can calculate the missing angles

x + 46 + 29 = 180

x = 180 - 46 -29

x = 105

a flat angle has 180 °

m1 + 105 = 180

m1 = 180 - 105

m1 = 75

46 + 54 + y = 180

y = 180 - 46 -54

y = 80

80 = z + 29

z = 80 - 29

z = 51

as they are two crossed lines the angle is reflected from the opposite side

with that principle and knowing that the angle of a turn is 360 °, if we subtract the 2 known angles and divide it by 2 we will obtain the missing angle (m2)

m2 * 2 = 360 - 51 * 2

m2 = 258/2

m2 = 129

m2 = 29 + m3

129 = 29 + m3

m3 = 129 - 29

m3 = 100

4 0
3 years ago
- 5+x=-8 how do solve this equation ​
zloy xaker [14]

Add 5 to both sides to get x alone and you will have your answer which is x= -3

5 0
3 years ago
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