Any unknown number in an equation you represent with a variable
Y² + 14y + 49 = 0
We know a² + 2ab + b² = (a + b)²
(y)² + 2 x 7 x y + (7)² = 0
(y + 7)² = 0
y = -7
y = -7
Correct option C
6 cause all the others are 2 digit (i think this is the right one) tell me if i'm wrong
Answer:
Step-by-step explanation:
5.5x-5=y
