3 x 5 x 5 x 7 = 525
396
-1
-7
4 x 13 = 52
-28
How about: 4*5*7 = 140
-13
List numbers that multiply to make 28 and find their sums. Since negative times a negative is positive, list the negatives. -1, -28 = -29 -2, -14 = -15 -4, -7 = -11 Aha! -4 and -7 multiply to make 28 and add to -11; therefore, -4 and -7 are the two numbers.
they multiply to a product
No you don't multiply the 4 numbers you take radius times radius
700
-4 x 5 = -20 and -4 + 5 = 1.