Bonjour,
Factoriser:
a²-144= (a+12)(a-12)
9x²-16= (3x+4)(3x-4)
(x²/4)-(4/9)= 1/6(9x²-16)= 1/36(3x+4)(3x-4)
x²-7= (x+√7)(x-√7)
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Bonjour,
Factoriser:
a²-144= (a+12)(a-12)
9x²-16= (3x+4)(3x-4)
(x²/4)-(4/9)= 1/6(9x²-16)= 1/36(3x+4)(3x-4)
x²-7= (x+√7)(x-√7)