Question

factorise the following :
x²+2x+4 ​

Answer 1

Answer:

If you move the 4 over, x^2+2x-4=0, you get a quadratic that does not factor. So, you have two choices here. Use the quadratic formula or complete the square. Quadratic formula: x = (-b +- sqrt(b^2 - 4ac))/(2a) Here, a=1, b=2, c=-4.