Question

solve the following quadratic equations by factorisation x²-15x-36=0​

Answer 1

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Answer 2

Step-by-step explanation:

${x}^{2} - 3x - 12x + 36 = 0 \\ x(x - 3) - 12(x - 3) = 0 \\ (x - 3)(x - 12) = 0 \\ x = 3 \: \: . \: x = 12$