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Let y= ab+(- a)(b) +(-a)(-b) factor out -a y= ab+(-a){b+(-b)} y=ab+(-a)(0) y =ab -------------------(1) now factor out b y= b{a+(-a)}+(-a)(-b) y= b(0) +(-a)(-b) y= (-a)(-b)-----------------(2) equate (1) and (2) (-a)(-b)=ab minus x minus = positive

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Q: How minus times minus is plus?
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Related questions

What is Negtive times a plus equal?

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


Can you explain why subtracting an integer is adding its opposite?

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


What is a plus times a plus?

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).


What is plus times a minus?

Positive (Plus) times Negative (Minus) always equals a negative (minus).


What is 78 minus 51 plus 46 minus 12 times 34 plus 91 minus 83 plus 10 plus 93 divided by 3 minus 31 plus 56 times 28 minus 49 plus 34 plus 97 times 68-64 plus 33 minus 49 plus 91 times 3 plus 35?

8060 Source: calculator


Does a minus times a minus equal a plus?

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


The quotient of a negative integer and a positive integer is?

The quotient of a positive integer by a negative is always negative. Say this to yourself a couple times: "MULTIPLICATION: minus times minus is plus (negative x negative = positive).....minus times plus is minus (negative x positive = negative).....plus times plus is plus (positive x positive = positive) DIVISION: minus divi minus is plus (negative ÷ negative = positive)......minus divi plus is minus (negative ÷ positive = negative).....plus divi plus is plus (positive ÷ positive = positive)"


What is the answer to 2 plus 3 minus 2 times 1 square plus 4 times 16 square minus 4 times 2?

Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.


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-2 times -2 = plus 4 since minus times minus is plus


Why is the product of a positive integer and a negative integer a negative integer?

I honestly don't know :D but heres something to help you "MULTIPLICATION: minus times minus is plus (negative x negative = positive).....minus times plus is minus (negative x positive = negative).....plus times plus is plus (positive x positive = positive) DIVISION: minus divi minus is plus (negative ÷ negative = positive)......minus divi plus is minus (negative ÷ positive = negative).....plus divi plus is plus (positive ÷ positive = positive)"


What is 1 plus 1 minus 1 times 4567 minus 0.5 plus 1.5 minus 1?

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