Question

factorise
x² + 3x - 4​

Answer 1

Step-by-step explanation:

$\huge \underline{Answer - }$

${x}^{2} + 3x - 4 \\ \\ {x}^{2} + x - 4x - 4 \\\bold{(By \:Middle \: Term \:Splitt)} \\ \\ x(x + 1) - 4(x + 1) \\ \\ (x - 4)(x + 1) \\ \\ Hence, \\ x - 4 = 0 \: \: \: \: \: and \: \: x + 1 = 0 \\ \fbox\bold{x = 4 \: \: \: \: \: and \: x = - 1}$

Answer 2

Answer:

(x-1)(x+4)

Step-by-step explanation:

X²+3x-4

x²+(4-1)x -4

x²+4x-1x-4

x(x+4)-1(x+4)

(x-1)(x+4)