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Popular >

simplify 3(x-5)^2-3(2x-1)

Solution

simplify

3 (x - 5)^{2} - 3 (2 x - 1)

Solution

3 x^{2} - 36 x + 78

Solution steps

3 (x - 5)^{2} - 3 (2 x - 1)

Expand

3 (x - 5)^{2} : 3 x^{2} - 30 x + 75

= 3 x^{2} - 30 x + 75 - 3 (2 x - 1)

Expand

- 3 (2 x - 1) : - 6 x + 3

= 3 x^{2} - 30 x + 75 - 6 x + 3

Group like terms

= 3 x^{2} - 30 x - 6 x + 75 + 3

Add similar elements:

- 30 x - 6 x = - 36 x

= 3 x^{2} - 36 x + 75 + 3

Add the numbers:

75 + 3 = 78

= 3 x^{2} - 36 x + 78

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Frequently Asked Questions (FAQ)

What is 3(x-5)^2-3(2x-1) ?
The solution to 3(x-5)^2-3(2x-1) is 3x^2-36x+78