+ 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).
8060 Source: calculator
86
54
Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.
21
simplify the square foor of 49 times x to the third time y to the sixth times the absolute value of z squared
6
It could be: 34-(7*6)+8 = 0
2a+5
2b
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
3a - 2b