X = -31/8 = -3.875
4 because:- a = missing factor 4 x 7 x a = 28 x 4 28 x a = 112 a = 112/28 a = 4
1x28.....2x14....4x7
yes 4x7=28
4x+3=9x-4+4 +44x+7=9x-4x -4x7=5x-------57/5=1.41.4=x
-6x3 + 4x7 - 0.8x2 + x4 - 5x5 = 4x7 - 5x5 + x4 - 6x3 - 0.8x2 = x2 (4x5 - 5x3 + x2 - 6x - 0.8)
X = -31/8 = -3.875
-9/3 + 4*7 = 25
I don't know 2, but 4x7=28, and that is a common factor.
(7x4) + (4x7) = 28 + 28 = 56
2x7=14double = 4x7= 28
4 because:- a = missing factor 4 x 7 x a = 28 x 4 28 x a = 112 a = 112/28 a = 4
28
4x7=28 2(4x7)=2x28=56
32
4x7=28(4x7=2x28=56
224 8 x 28 (2x4) x (4x7) (2 x (2x2)) x ((2x2) x 7) Since 2 and 7 are prime numbers, the factor tree is complete.