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AlekseyPX
2 years ago
14

What expression is equivalent to (2a - 7) + 5(3 - a)

Mathematics
1 answer:
Colt1911 [192]2 years ago
7 0

Answer:

Step-by-step explanation:

2a-7+15-5a

2a-5a-7+15

-3a+8

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Find the following algebra, I am in class and plz give explanation
Lelechka [254]

1) Solving 4a+4b-ac-bc we get (a+b)(4-c)

2) Solving 16a^4-8b we get 8(2a^4-b)

3) Solving x^2-8x+15 we get (x-3)(x-5)

Step-by-step explanation:

We need to solve the following expressions:

1) 4a+4b-ac-bc

We will solve this expression by factoring common terms:

4a+4b-ac-bc

Factoring 4 from 4a+4b and -c from -ac-bc

4(a+b)-c(a+b)

Taking common term

(a+b)(4-c)

2) 16a^4-8b

We will solve this expression by factoring common terms:

16a^4-8b

Taking 8 as common term:

8(2a^4-b)

3) x^2-8x+15

We can solve the expression by breaking the middle term into 2

x^2-3x-5x+15\\Finding\,\,common:\\=x(x-3)-5(x-3)\\=(x-3)(x-5)

Keywords: Finding factors

Learn more about Finding factors at:

  • brainly.com/question/10771256
  • brainly.com/question/1332667
  • brainly.com/question/1357167

#learnwithBrainly

6 0
3 years ago
Solve for z.<br><br> z12≤3<br><br> z≥36<br><br> z≤36<br><br> z≥4<br><br> z≤4
erastova [34]

Answer:

Your answer is correct... it's no.3 ... but if you multiply a inequality by a negative value the inequality sign changes.. like if you habe greater than it'll be less than... Keep that in mind too

5 0
3 years ago
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If she have 12 pencils and she gave 3/4 away then she will have 3 pencils left.
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Answer:

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Step-by-step explanation:

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A squared + B squared = C squared

A = 7 feet

C = 25 feet

B = distance the ladder will reach

49 + B squared = 625

B squared = 625 - 49

B = square root of 576

B = 24 feet

6 0
2 years ago
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Usimov [2.4K]

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Step-by-step explanation:

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