Question

√5x²+8x-4√5 solve using quadratic equation​

Answer 1

Answer:

x= 2/√5 or x= -2√5

Step-by-step explanation:

√5x²+8x-4√5=0

√5x²+10x-2x-4√5=0

√5x(x+2√5)-2(x+2√5)=0

(√5x-2) (x+2√5) = 0

√5x-2=0 or x+2√5=0

x= 2/√5 or x= -2√5

incase you didn't understand how the middle term was split, here's how I did it:

Product = -4√5 × √5 = -4 × √5 ×√5 = -4 × 5 = -20

Sum = 8x

10 × -2 = -20

10x + (-2)x = 8x

hope that helped.