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Ivenika [448]
3 years ago
7

Factorize 3x²-11x-20​

Mathematics
2 answers:
slava [35]3 years ago
7 0
Hello this is the answer, hope it helped :)

lbvjy [14]3 years ago
6 0

1) Split the second term in 3x^{2} -11x-20 into two terms.

3x^{2} +4x-15x-20

2) Factor out common terms in the first two terms, then in the last two terms.

x(3x+4)-5(3x+4)

3) Factor out the common term 3x+4.

(3x+4)(x-5)

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1) a) Factorize: G(x) = (x+5)2 – 3x(x+5).
Arada [10]

Answer:

In bold.

Step-by-step explanation:

a.  (x+5)^2 – 3x(x+5)     x+5 is common

= (x + 5)(x + 5 - 3x)

= (x + 5)(5 - 2x)

b.  (x + 5)(5 - 2x) = 0

x = -5, 2.5.

2a.   Area of the square = (x + 5)^2

Area of triangle AEB

= 1/2 * base * height  

I am assuming that  H is the centre of AB , so

Area = x*x

= x^2.

2b

6x^2 = (x + 5)^2

6x^2 = x^2 + 10x + 25

5x^2 - 10x - 25 = 0

x^2 - 2x - 5 = 0

x = [-(-2) +/- sqrt(2^2 - 4*1*-5)] / 2

x = -1.45, 3.45.

 (we ignore the negative).

8 0
3 years ago
Which expression is equivalent to 4(x+2)
Alekssandra [29.7K]

Answer:

4x+8

Step-by-step explanation:

We have been given an expression 4(x+2). We are asked to find equivalent expression to our given expression.

Using distributive property a(b+c)=ab+ac, we will get:

4\cdot x+4\cdot2

4x+8

Therefore, the expression 4x+8 is equivalent to our given expression.

8 0
4 years ago
Read 2 more answers
Simplify the expression. 3(5 – 2)<br> a. 5<br> b. 6<br> c. 9<br> d. 30 PLZ HELP!
Fiesta28 [93]
The answer is C) 9. The answer is 9 because you have to subtract (5-2) then multiply the answer by 3 which ends up as 9.
3 0
3 years ago
Find the 50th term of the following<br> arithmetic sequence 5, 9, 13, 17?
yarga [219]

Answer:

201

Step-by-step explanation:

First you need to know the position to term rule and to find this you use a formula which is:

tn = an + b

Where tn is the term number,  a is the difference between the other terms.

So the tposition to term rule here is 4n+1.

Then we substitute n for the value 50 making it 4(50) + 1 = 201.

201 is the 50th term

6 0
3 years ago
Will give brainliest if right <br><br> O C. 65 <br> O D. 50
Arlecino [84]

Answer:

D

Step-by-step explanation:

istg if one of yall roasts my dirty calculator

7 0
3 years ago
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