Kelkun pourai m'aider SVP URGEN 1) Résoudre dans R:
f) x²+8=0
g) (6x²-3x-1)² - (x²+4x-1)²=0
h) 
i) 25-4x²=0
j) (x-3)²= -25
k)  

2) Factoriser si possible:
P1(x)= -24x² +2x+35
P2(x)= x²-25
P3(x)= 9x²-30x+25
P4(x)= 20xé-40x+53
P5(x)= -x²-6x+7
P6(x)= x²+8
P7(x)= 2x2+5x-3
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