Question

Evaluate the expression when y=-4 y^2+5y+1

Answer 1

Step-by-step explanation:

❀ $\underline{ \underline{ \text{Given}}} :$

• y = -4

❀ $\underline{ \underline{ \text{To \: find}}} :$

• Value of y² + 5y + 1

❀ $\underline{ \underline{ \text{Solution}}} :$

~Plug the value of y at first :

➾ $\sf{ {-4}^{2} + 5 \times (-4 )+ 1}$

~ Evaluate the power : 4²

➾ $\sf{16 + 5 \times (-4 )+ 1}$

Follow the BODMAS { Bracket , Of , Division , Multiplication , Addition and Subtraction } rule :

~Multiply -5 and 4

➾ $\sf{16 + (-20)+ 1}$

~ Multiply the signs : ( + ) and ( - ) :

➾ $\sf{16 - 20 + 1}$

~Add the numbers : 16 and 1

➾ $\sf{17-20}$

~ Subtract 20 from 17

➾ $\sf{-3}$

$\pink{ \boxed{ \boxed{ \tt{⟿ \: Our \: final \: answer : -3}}}}$

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