Question

Explain splitting a term in an expression? And Split x²+x-420 ​

Answer 1

Answer:

${x}^{2} + x - 420 = 0 \\ {x}^{2} + 21x - 20x - 420 = 0 \\ x(x + 21) - 20(x + 21) = 0 \\ (x + 21)(x - 20) = 0 \\ x = 20 \: or \: - 21$

Answer 2

Step-by-step explanation:

I hope it is helpful for u