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Monica [59]
3 years ago
13

Identify the operation of the expression (3d^2+8d-2)+(2d^2-7d+6)(3d

Mathematics
1 answer:
Strike441 [17]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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Match each expression to its equivalent standard form.
Aleksandr [31]

Let's expand the products they are all in the form

(a+b)(a-b)=a^2-b^2

For the first one we have a=x and b=2i:

(x+2i)(x-2i)=x^2-(2i)^2=x^2+4

For the second one we have a=x-2 and b=2i:

(x-2+2i)(x-2-2i)=(x-2)^2-(2i)^2 = x^2-4x+4+4=x^2-4x+8

For the third one we have a=x+1 and b=i:

(x+1+i)(x+1-i)=(x+1)^2-i^2=x^2+2x+1+1=x^2+2x+2

3 0
4 years ago
A system of equations and its solution are given below.
Fittoniya [83]
Answer: Option <span>C. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.

First equation of system A multiplied by -3:
(-3)(x+6y=5)
(-3)(x)+(-3)(6)=(-3)(5)
-3x-18=-15

Sum of the second equation of system A and the first equation multiplied by -3:
(-3x-18)+(3x-7y)=(-15)+(-35)
-3x-18+3x-7y=-15-35
-25y=-50

System B
x+6y=5
-25y=-50 </span>
4 0
3 years ago
Read 2 more answers
(m + n^2)(m^2 - mn^2 + n^4) = find the product of the expression.Show your work.
hram777 [196]
Final Answer is 4n-32/(n-4)(n+4)
3 0
3 years ago
The football team has a total of 350 jersey there are 150 medium-sized-jersey. Percent of jerseys are medium-sized-jerseys
liubo4ka [24]

Answer: 525

Step-by-step explanation:

if your looking for 150 percent of 350, the answer is 525 because....

150 x 350/ 100 =525

3 0
3 years ago
The difference of the measures of two supplementary angles is 80°. find the measure of each angle.
telo118 [61]
I poooped myself there is brown stuff all over the place
4 0
3 years ago
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