Question 28634
X~4-7X~2+10=0 OR (X~2-5)(X~2-2)=0 OR X~2-5=0 OR X~2=5 AND X~2=2

PROOF 5X5-7X5+10=0 OR 25-35+10=0 OR 35-35=0 OR 0=0
      2X2-7X2+10=0 OR 4-14+10=0 OR 14-14=0 OR 0=0