Answer:
=7x^2−28
Step-by-step explanation:
Let's simplify step-by-step.
7(x−2)2+28(x−2)
Distribute:
=7x2+−28x+28+(28)(x)+(28)(−2)
=7x2+−28x+28+28x+−56
Combine Like Terms:
=7x2+−28x+28+28x+−56
=(7x2)+(−28x+28x)+(28+−56)
=7x2+−28
Answer: Since you are finding the missing side of a rectangle, it is 3.
Step-by-step explanation:
Area of rectangle= (l)(w)
Answer:
22
Step-by-step explanation:
Answer:
13 match sticks
Step-by-step explanation:
each picture adds 2 match sticks;
so in simple terms, 3+2+2+2+2+2=13 matches
Answer:
it is arithmetic bcuz each term in sequence differ by -3