Answer:
the perimeter of rectangle is 52cm if two adjacent sides are (2×+3)cm and (×+5)cm
the step by step explanation is to expand the binomial
Answer:
12.2*1=12.2
12.2*0.45=5.49
5.49+12.2=17.69
Step-by-step explanation:
Answer:

Step-by-step explanation:
The complete question in the attached figure
we have

we know that
(ab)(x) is equal to the product of a(x) and b(x)
so

Applying distributive property



This is a quadratic equation
The other expressions not produce a quadratic equation
Answer: 3• D 4• B (why does this require me to put 20 characters) anyway this is my guess