( 5 - X )² + ( 5X - 2 )² Tolong pake cara ya makasih~

Question

Matematika Diposting : 2017-09-05 Diupdate : 2017-09-14 Dhinda25204

Pertanyaan

( 5 - X )² + ( 5X - 2 )²
Tolong pake cara ya makasih~

Answer 1

( 5 - X )² + ( 5X - 2 )²
= 5² + 2.5.(-X) +(-X)² + (5X)² + 2.5X.(-2) + (-2)²
=25 - 10X + X² + 25X² -20X + 4
=26X² -30X +29