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Gnoma [55]
3 years ago
11

Factorize the following:5(3a + b)² +6 (3a +b) - 8​

Mathematics
2 answers:
zvonat [6]3 years ago
5 0

Answer:

Step-by-step explanation:

Here, following formula will be used

(a+b)²= a²+b²+2ab

question

5(3a + b)² +6 (3a +b) - 8​

=> we will take out 3 as common number to make the term (3a+b) to fit formula requirement

=> 5x3 (a+b/3)²+6(3a+b)-8

=> 15(a²+b²/9+2xaxb/3)+18a+6b-8

here, we have expanded the formula

=> 15a²+15b²/9+15x2ab/3+18a+6b-8

=> 15a²+5b²/3+10ab+18a+6b-8

n200080 [17]3 years ago
4 0

Answer:

[5(3a +b) - 4][ (3a +b) + 2]

Step-by-step explanation:

We can factorize the equation as follows:

5(3a + b)² +6 (3a +b) - 8​ ..(1)

Let (3a +b) be y, therefore the question becomes

5y^2 + 6y - 8. .... (2)

Next, we have to multiply the first and last term together, and then find the factor such that the factors will result to 6. This is illustrated below:

5y^2 x - 8 = -40y^2

Factors of -40y^2 = 10y and - 4y

Substituting 10y and - 4y into the into equation (2) in place of 6y, we obtain:

5y^2 + 6y - 8

5y^2 + 10y - 4y - 8

Now, we factorize as follows:

5y(y + 2) - 4(y + 2)

Since we have same entity in both brackets, we shall pick one:

(5y - 4)(y + 2). .....(3)

But recall

y = (3a +b)

Substituting the value of y into equation (3), we have:

(5y - 4)(y + 2).

[ 5(3a +b) - 4 ][ (3a +b) + 2 ]

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trapecia [35]

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6 0
3 years ago
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5.8 times 10 and show work (optional)
Step2247 [10]

Answer:

58

Step-by-step explanation:

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3 years ago
In efforts of improving their orofit margins, a company is considering creating their own manufacturing plant for their product.
Trava [24]

Answer:

To get an overall profit of $100,000, then 3,571 items is needed to be produced

Step-by-step explanation:

Mathematically;

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In the question, we are told that the profit we are expecting is $100,000

Let the number of items to be produced for sales be x items

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Let’s look at the revenue;

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4 years ago
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Answer:

1. $-50

2. $25

Step-by-step explanation:

1. If she had $150 in her bank account and bought a bike for $200, then that means she spent all of her money PLUS $50 extra then what she had.  That means $200-$150=$50.  Her $150 is spent and that $50 becomes negative because she paid $200 when she only had $150.

2.  If she deposits $75 in her account then it will be $75+(-50).  That translates to $75-$50 which is $25.  

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3 years ago
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