give me some questions from maths
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find ascending order 84,38,38,29,10,8,29
find square root=625/125
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4. Simplify: (4 – 5) – (13 – 18 + 2).
Solution:
(4 – 5) – (13 – 18 + 2).
= -1-(13+2-18).
= -1-(15-18).
= -1-(-3).
= -1+3.
= 2.
5. What is |-26|?
Solution:
= 26.
6. Multiply: (x – 4)(x + 5)
Solution:
(x – 4)(x + 5).
= x(x + 5) -4(x + 5).
= x2 + 5x – 4x – 20.
= x2 + x - 20.
7. Factor: 5x2 – 15x – 20.
Solution:
5x2 – 15x – 20.
= 5(x2 – 3x – 4).
= 5(x2 – 4x + x – 4).
= 5{x(x - 4) +1(x - 4)}.
= 5(x-4)(x+1).
8. Factor: 3y(x – 3) -2(x – 3).
Solution:
3y(x – 3) -2(x – 3).
= (x – 3)(3y – 2).
9. Solve for x: 2x – y = (3/4)x + 6.
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