Factor out common term: Simplify the expression by factoring out the common term, 7. 7d+14=7(d+2)
Check for factor of 4: Check if 4 is a factor of the simplified expression, 7(d+2). Since 7 is not divisible by 4 and (d+2) does not contain a factor of 4 unless d is specifically a multiple of 4 minus 2, 4 is generally not a factor of 7(d+2).