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Q: What is 2x2 plus 26-30 plus 30 plus 30-30-26?

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30 + 30 + 30 + 30 + 30 + 30 = 180

30

10 + 10 + 10

205

209 Having a calculator helps.

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6x3 - x2 + 17 = 2x2 + 47 6x3 - x2 - 2x2 = 47 - 17 x2(6x - 1 - 2) = 30 this is the simplest factorisation.

2x2 + 6 = 30 is your statement.2x2 = 24x2 = 12x = ±√12x = ±√(4*3)x = 2√3 or x = -2√3

20X2 + 3010(2X2 + 3)============That's as much factoring as can be done here.

MMDCXXX stands for 2000+600+30 = 2630

By using the quadratic equation formula: x = -5 and x = 3

Some plusses and/or minuses would have assisted. (2x - 5)(x + 6) are factors of 2x2 + 7x - 30, giving solutions for x of 2.5 and -6; (2x + 5)(x - 6) are factors of 2x2 - 7x - 30, giving solutions of -2.5 and 6.

30 + 30 + 30 + 30 + 30 + 30 = 180

8x6-6x3 30 15 _______ simplify to ____ simplify to ____ 2x2 4 2 ans 15\2

30

90

-30 plus 60 = 30

The sum of these numbers is 563.

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