Find the value of: 9y-2y²for y=-2
Answers
Answered by
4
2y 2 +9y+10=0
2y 2 +4y+5y+10=0
2y(y+2)5(y+2)=0
(y+2)(2y+5)=0
y=−2,y= 2/−5
Answered by
3
Answer:
-26
Step-by-step explanation:
Given equation is, 9y - 2y^2----------(1)
given that, y= -2, substitute this value in equation (1).
=> 9y - 2y^2 = 9 (-2) - 2 (-2)^2
= 9 (-2) -2 (4)
= -18 - 8
= -26
Similar questions