Question

(5) 2y2 + 9y + 10 = 0
plz solve this equation by using complete square method​

Answer 1

Answer:

y=-2 or y=-5/2

Step-by-step explanation:

2y²+9y-10=0

y²+9/2+5=0

y²+9/2y+(9/4)²=-5(9/4)²=-5+81/16=1/16

(y+9/4)²=(1/4)²

y+9/4=+-1/4

y+9/4=1/4 or y+9/4=-1/4

y=-2 or y=-10/4=-5/2