Question

a) (x + 4) la a 2
b) (x - 5) la a 2
c) (2x-3) la a 2
d) (3x + 1) la a 2
e) (7x + 1) (7x-1)
f) (x - 5) (x +5) ..
vaa rog ajutați-mă !

Answer 1

a)   x²+8x+16
b) x²-10x+25
c)4x²-12x+9
d) 9x²+6x+1
e)49x²-1
f) x²-25

Answer 2

 
a) ( x + 4) la puterea a 2 = x la a 2 + 8x + 16
b) ( X - 5)  la puterea 2 = x la a 2  - 10x  + 25
c) ( 2x - 3 ) la puterea 2 = 4x la a 2 - 12x  + 9
d) (3x + 1 ) la puterea a 2 = 9x la a 2 + 6x + 1
e) (7x + 1)(7x - 1) = 49x la a 2 - 1
f) (x -5)(x + 5)= x la a 2 - 25
succes