Question

Descompuneti in factori:

$x {}^{2} - 5x + 4$
$x {2} - 5x + 6$
$x ^{2} - 7x + 10$
${x}^{2} - 10x + 24$
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Answer 1

Răspuns:

Explicație pas cu pas:

a) x²-4x-x+4=x(x-4)-(x-4)=(x-1)(x-4)

b)x²-5x+6=x²-2x-3x+6=(x-2)(x-3)

c) x²-7x+10=x²-2x-5x+10=(x-2)(x-5)

d)x²-10x+24=x²-6x-4x+24=(x-4)(x-6)

Answer 2

x²-5x+4=x²-x-4x+4=x(x-1)-4(x-1)=(x-1)(x-4)

x²-5x+6=x²-2x-3x+6=x(x-2)-3(x-2)=(x-2)(x-3)

x²-7x+10=x²-2x-5x+10=x(x-2)-5(x-2)=(x-2)(x-5)

x²-10x+24=x²-4x-6x+24=x(x-4)-6(x-4)=(x-4)(x-6)