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2 years ago

Find the L.C.M. of a3-1, a4+a2+1 and a2+a+1.

Mathematics

1 answer:

Karolina [17]2 years ago

6 0

Answer:

a+b+ab+b+a...........

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Celina says that each of the following expressions is actually a binomial in disguise:(Expressions in picture) For example, she

Juliette [100K]

Yes , she is right. All the remaining can be expressed in binomial.

II) $5x^3 * 2x^2 - 10x^4 + 3x^5 + 3x * (-2)x^4$

$10x^5 - 10x^4 + 3x^5 + -6x^5= 7x^5 - 10x^4$ is a binomial

iii) $(t+2)^2 - 4t = t^2 + 4t + 4 -4t = t^2 + 4$ is a binomial

iv) $5(a-1) - 10(a-1) + 100 ( a-1) = 5a - 5 - 10a + 10 + 100a -100 = 95a -95$ is a binomial

v) $( 2\pi r -\pi r^2)r - ( 2\pi r -\pi r^2)2r = 2\pi r^2 -\pi r^3 - 4\pi r^2 + 2\pi r^3$ = $-2\pi r^2 + \pi r^3$ is also a binomial

4 0

3 years ago

What is the discriminant of the quadratic equation 2x² - x - 3=0?

Tamiku [17]

The given quadratic equation is

$2 {x}^{2} - x - 3 = 0$

comparing with

${ax}^{2} + bx + c = 0$

We get ,

$a = 2 \\ b = - 1 \\ c = - 3$

formula :

$D = {b}^{2} - 4ac \\ \\ D = {( - 1)}^{2} - 4 \times 2 \times ( - 3) \\ \\ D = 1 - ( - 24) \\ \\D = 1 + 24 \\ \\D = 25.$

Discriminant of given quadratic equation is 25 .

option (B) 25 ✔

6 0

1 year ago

Having trouble on these type of questions. an explaination would be greatly appreciated

Kazeer [188]

Answer: easy peasy so your answer would be 4=(6x7)x12 so what you would do is take the first two and dived them your answer you want to dived it with your other numbers

Step-by-step explanation:

8 0

2 years ago

Angle AOC has what measurement according to the protractor? A. 150° B. 50° C. 30° D. 130°

maxonik [38]

Answer:

∠AOC = 50°

B is correct.

Step-by-step explanation:

In the given figure of protractor measure the ∠AOC

Please find the attachment of protractor.

OA is horizontal line which is base of protractor.

In angle AOC, two legs OA and OC

OA is base of protractor. OC another leg.

Now we see position of leg OC of angle AOC.

∠AOC is acute angle. So, see the number bottom of protractor.

Hence, the measure of ∠AOC is 50°

7 0

3 years ago

Read 2 more answers

HEY CAN ANYONE PLS ANSWER DIS MATH PROBELM!

miv72 [106K]

Answer:

y=-2x+6 and y=4x

Step-by-step explanation:

If you graph these two, the point where the two lines intersect is (1,4).

7 0

2 years ago

Read 2 more answers

Find the L.C.M. of a3-1, a4+a2+1 and a2+a+1. ​

Find the L.C.M. of a3-1, a4+a2+1 and a2+a+1.