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Let the two numbers be a and b. Then,
ab = 72 therefore b = 72/a. Substituting for b in a + b = -19 gives,
a + 72/a = -19 : multiply both sides by a.
a2 + 72 = -19a : therefore a2 + 19a + 72 = 0
Solving for a quadratic equation gives,
a = [-19 ± √(361 - 288)] ÷ 2 which simplifies to a = -9.5 ± 4.272 (3dp)
The two numbers are therefore -9.5 + 4.272 = -5.228 and -9.5 - 4.272 = -13.772
What else can I help you with?
What numbers can you multiply to get 72 and add to get 17?
89
What numbers multiply to get 72?
There are an infinite number of real numbers that multiply to get 72.
What 2 numbers add to equal 21 but multiply to equal 72?
24 & 3
What two numbers multiply to get 72?
Two numbers that you can multiply together to get 72 are: 36 and 2.
What two numbers add to give -1 and multiply to give -72?
-73
What numbers multiply to 72 and add to -17?
The numbers that multiply to 72 and add to -17 are -8 and -9. When you multiply -8 and -9, you get 72, and when you add them together, you get -17.
What 2 numbers multiply to -72 but add to -29?
The two numbers that multiply to -72 and add to -29 are approximately 3.57 and -32.57.
What two numbers multiply to 72 and add to 19?
The factor pairs of 72 are (72,1)(36,2)(24,3)(18,4)(12,6)(9,8) None of them total 19.
What two numbers add to give you 38 and multiply to give you 72?
The two numbers that add to 38 and multiply to give 72 are 36 and 2. When you add them together, 36 + 2 equals 38, and when you multiply them, 36 × 2 equals 72.
What two numbers equal -30 when you add them but 72 when you multiply them?
42
What two numbers add up to -72 and multiply to 1296?
The two numbers are... -36 and -36
What numbers can you multiply to get 72 and add to get 17?
89
What two numbers add to 0 but multiply to -72?
The two numbers that add to 0 but multiply to -72 are 8 and -8. When you add them together, 8 + (-8) equals 0. When you multiply them, 8 × (-8) equals -64, which is incorrect. The correct numbers are 6 and -6, which also don't satisfy the multiplication requirement. The numbers that fit the criteria should be 8 and -8.
What numbers multiply to get 72?
There are an infinite number of real numbers that multiply to get 72.
What 2 numbers add to equal 21 but multiply to equal 72?
24 & 3
What numbers can you multiply together to get -432 that also add together to get -66?
-498
What two numbers multiply together to equal -1008 and add together to equal 72?
-936
