Zamień na iloczyn
a) 16 a do potęgi 2 - 9b do potęgi 2
b) 4x do potęgi 2 - 4xy + y do potęgi 2
c) a do potęgi 2 - 4 b do potęgi 2
d) 2a (a-1) - 2b (a -1)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)
16 a^2 - 9 b^2 = ( 4a)^2 - ( 3b)^2 = ( 4a - 3b)*(4a + 3b)
b)
4 x^2 - 4xy + y^2 = ( 2x - y)^2
c)
a^2 - 4b^2 = a^2 - (2b)^2 = ( a - 2b)*(a + 2b)
d)
2a( a - 1) - 2b ( a - 1) = ( a - 1)*(2 a - 2b) = 2*(a - 1)*( a - b)