Answer:
semoga jawapan ini dapat membantu
I think d but i might be wrong :( sorry
Answer:
7x^2 -28x +28
Step-by-step explanation:
7(x - 2)^2
7 ( x-2)(x-2)
Foil
7 ( x^2 -2x-2x+4)
Combine like terms
7( x^2 -4x+4)
Distribute
7x^2 -28x +28
C is the answer to your question
Answer:
2,8h (2h and 47 minutes aprox.)
Step-by-step explanation: