Question

find the zeroes of the polynomial 5x2-20​

Answer 1

Answer:

Step-by-step explanation:

5x²-20=0

5(x²-4)=0

5(x+2)(x-2)=0                (:[A-B][A+B]=A²-B²]

if x+2=0

x=-2

if x-2=0

x=2

zeroes are 2 and -2 ANS

Answer 2

$hello \: mate$

=>5x²-20=0

=>5x²=20

=>x²=4

=>x=√4

=>x=±2

Hence the zeroes are 2,-2.