Question

find the value if the polynomail p(y)=5y2-3y+7 at y =-1​

Answer 1

Answer:

5y²-3y+7

at y=-1

5(-1)²-3(-1)+7

5+3+7=15

Step-by-step explanation:

Answer 2

Answer:

9,15

Step-by-step explanation:

y = 1, - 1

Given polynomial

P( y ) = 5y^2 - 3y + 7

Put y = 1

P ( 1 ) = 5 ( 1 ) ^2 - 3 ( 1 ) + 7

=> 5 - 3 + 7

=> 12 - 3

=> 9

Put y = - 1

P ( - 1 ) = 5 ( - 1 )^2 - 3 ( - 1 ) + 7

=> 5 + 3 + 7

=> 12 + 3

=> 15

Answers :- 9, 15