128^2+128*144+72^2 = = 要求用公式法分解.

问题描述:

128^2+128*144+72^2 = = 要求用公式法分解.

128^2+128*144+72^2
=128^2+2*128*72+72^2
=(128+72)^2
=200^2
=40000

128^2+128*144+72^2 = (128+72)^2=40000

128^2+128*144+72^2
=128^2+2x128x72+72^2
=(128+72)^2
=200^2
=40000