if 4 * 7 = x * 4, then x = (4 * 7) / 4 = 7
4 because:- a = missing factor 4 x 7 x a = 28 x 4 28 x a = 112 a = 112/28 a = 4
50
28
All possible parameters are: 1x28 2x14 4x7
28 divided by 7 = 4
2x7=14double = 4x7= 28
28
4x7=28 2(4x7)=2x28=56
32
4x7=28(4x7=2x28=56
-6x3 + 4x7 - 0.8x2 + x4 - 5x5 = 4x7 - 5x5 + x4 - 6x3 - 0.8x2 = x2 (4x5 - 5x3 + x2 - 6x - 0.8)
You can use the product from 4x7 to find the product of 8x7 by doubling the answer to 4x7. The product of 4x7 is 28 and the product of 8x7 is 56 (28 doubled is also 56).