Question

factorise the quadratic equation
$(x + 5)(x - 4) = 0$
​

Answer 1

HeYa❤️...

Answer:

$(x + 5)(x - 4) = 0 \\ \\ x {}^{2} - 4x + 5x - 20 = 0 \\ \\ x {}^{2} + x - 20 = 0 \\ \\ x {}^{2} + (5 - 4)x - 20 = 0 \\ \\ x {}^{2} + 5x - 4x - 20 = 0 \\ \\ x(x + 5) - 4(x + 5) = 0 \\ \\ (x + 5)(x - 4) = 0 \\ \\ x = - 5 \: and \: 4$

I hOpe It HeLpS Ya!

✌️✌️✌️✌️