I have to do step by step why the answer of (5x - 1) (5x - 1) is 25x^2 - 10x + 1.
How do i do it?

(5x - 1) (5x - 1)

Ans: 25x^2 - 10x + 1

Answers

Answer 1
There’s 2 ways. One is simpler than the other; A normal bracket expansion we would do 5x * 5x which equals to 25x^2, then 5x * -1. Do the same with the second bracket: 5x * 5x = 25x^2. Then, 5x * -1 which is -5x
Now we have 25x^2 + -5x + 25x^2 -5x. Add like terms to get 50x^2 - 10x.
And the second method is using Pascals triangle but I’m not going to get much in detail as this is just a double extension bracket and all it will do is confuse you.
Answer 2

Answer:

Step-by-step explanation:

(5x - 1) (5x - 1)

= [tex](5x - 1)^{2}[/tex]

Using laws of exponents,

[tex](a - b)^{2} = a^{2} - 2ab + b^{2}[/tex]

here, a = 5x, b = 1

so it becomes,

[tex]5x^{2}[/tex] - 2 × 5x × 1 + [tex]1^{2}[/tex]

[tex]25x^{2}[/tex] - 10x + 1

Hope this helps

plz mark as brainliest!!!!!!!!


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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

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Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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The answer will be listed below!

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_____

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f(x) = 3x + 2
What is f(5)?

Answers

17, you just substitute the 5 for the x
The new problem would be f(5)= 3(5)+2
Simplify to f(5)=15+2
Answer f(5)= 17

Hello!

f(x) = 3x + 2

Since you are provided with f(5), we will replace every "x" in the equation with the number 5.

f(5) = 3(5) + 2

f(5) = 15 + 2

f(5) = 17

I hope this helps you! Have a great day!

- Mal

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