Question

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Answer 1

Answer:

2)

i). 3√3

ii) 5√2

3). 6x^3 +2x-2x^2

Step-by-step explanation:

2)

i). √27 =. √3*3*3

=. 3√3

ii). √50= √5*2*5

=. 5√2

3. (x^3-2x^2-9) + ( 5x^3+2x+9)

first open the brackets

=. x^3-2x^2-9 + 5x^3 +2x +9

then bring the same power digits together

=. x^3 +5x^3 -2x^2 +2x -9+9

=. 6x^3 -2 x^2 +2x

I don't know 1 and 4 tried how much I know

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