Question

- 21 = y" alt=" {x}^{2} + 10 - 21 = y" align="absmiddle" class="latex-formula">
Can someone explains me how to resolve?​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

x²+10-21=y

x²-11=y

x²=11+y

if you put value y =-11 than it can be resolve

x²=11-11

x²=0

x=0