2 + 2 + 2 + 2 = 2 x 4
a + a + a + a = a x 4
4 x 3 + 4 = 4 x 4
b x 2 + b x 3 = b x 5
2+2+2+2= 2x4
a+a+a+a = a x 4
4 x 3+4 = 4x4
b x 2+b x3 =b x5
2+2+2+2 = 2x4
a+a+a+a = ax4
4x3+4 = 4x4
b x 2 + b x 3 = b x 5
2 + 2 + 2 + 2 = 2 * 4
a + a + a + a = a * 4
4 * 3 + 4 = 4 * 4
b * 2 + b * 3 = b * 5