Sagot :
Answer:
6
Step-by-step explanation:
to understand this
you need to know about:
- algebra
- PEMDAS
given:
- y²-2y+6
- y=2
let's solve:
- substitute the value of y:2²-2.2+6
- simplify exponent:4-2.2+6
- simplify multiplication;4-4+6
- simplify addition:4+2
- simplify addition:6