Question

Fatoração de polinômios.
a) t² - 25
b) 49x² - 16
c) 100y² - 121x²
d) x² - 14x + 49
e) x² + 10x + 25
f) 4x² - 12x + 9
g) 9x² + 12x + 4

Answer 1

a
( t +5)(t-5)
b
( 7x + 4)(7x-4)
c
(10y + 11x)(10y - 11x )
d
(x-7)² 
e
(X + 5)²
f
(2x - 3)² 
g
( 3X + 2)² 

Answer 2

a) t² - 25 ==> (t+5)(t-5)
b) 49x² - 16  ==> (7x+4)(7x-4)
c) 100y² - 121x²  ==> (10y+11x)(10y-11x)
d) x² - 14x + 49 ==> ( x - 7 )²
e) x² + 10x + 25  ==> ( x + 5 )²
f) 4x² - 12x + 9  ==> (2 x - 3 )²
g) 9x² + 12x + 4  ==> ( 3x + 2 )²