Question

Find zeroes of polynomial 5✓5x²+30x+8✓5

Answer 1

to find zeroes equate the polynomial to zero

5√5x^2+30x+8√5=0

5√5x^2+10x+20x+8√5=0

5x(√5x+2)+4√5(√5x+2)=0

(5x+4√5)(√5x+2)=0

x= -4√5/5 or x= -2√5/5