Question

solve Factorisation x²-3x-4 = 0​

Answer 1

Answer:

x^2 - 3x -4= 0

x^2-(4x-1x)-4=0

x^2-4x+1x-4=0

x(x-4)+1(x-4)=0

(x-4)(x+1)=0

Step-by-step explanation:

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Answer 2

$x ^{2} - 3x - 4 = 0 \\ x ^{2} - 4x + x - 4 = 0 \\ x(x - 4) + 1(x - 4) = 0 \\ (x - 4)(x + 1) = 0 \\ x - 4 = 0 \: or \: x + 1 = 0 \\ x = 4 \: or \: x = - 1$

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