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Q: Simplify 2 minus square root of 5 times 4 plus square root of 5?

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+ times a + = a plus- times a + = a minus- times a - = a plus+ times a - = a minus

plus times plus = plus minus times plus = minus plus times minus = minus minus times minus = plus so when you subtract a number it is the same as adding its negative; for example 7 - 4 = 3 7 + (1)(-4) = 3

2a+6b

A plus times a plus is still a plus. Below is the way I remembered it: If there is not a minus sign, it is plus (positive). If there is 1 minus sign, it is minus (negative). If there are 2 minus signs, it is plus (positive).

Yes it does. A minus is the opposite of something, so the minus of a minus is a plus.

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2a+5

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6xsquared minus 26x minus 5 over 3xsquared minus 15x

+ times a + = a plus- times a + = a minus- times a - = a plus+ times a - = a minus

It could be: 34-(7*6)+8 = 0

3a - 2b

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