Answer:
The answer is C, E and F .
Step-by-step explanation:
Given that the area of square is, Area = length×width. In a square, all sides are equal so you have to substitute (2x+4) into the formula :
Let length be (2x+4) inches,
Let width be (2x+4) inches,
Area = (2x+4)(2x+4)
= (2x+4)² (option C)
= 4x² + 16x + 16 (option F)
= 4(x² + 4x + 4) (<em> </em><em>F</em><em>a</em><em>c</em><em>t</em><em>o</em><em>r</em><em>i</em><em>z</em><em>e</em><em> </em>)
= 4(x+2)² (option E)
You can use the formula, (a+b)² = a² + 2ab + b² to evaluate quickly.
It says the 5 things United States is poor life choices such as 1.unhealthy diets, 2.lack of physical activity, 3.smoking, use of 4.alcohol and 5.drugs.
All you have to do is divide 300 hundred by 3 and you get 100 students that don’t take a language So 200 students take language and 100 students don’t take language
Answer:
1723
Step-by-step explanation:
10 x 70=700
Given is the expression, x² + 12x + n
It says to find value of 'n' that converts it into a Perfect Square Trinomial.
A perfect square trinomial is a quadratic expression which has a single root with multiplicity 2. i.e. it is of the form :- x² + 2bx + b² = (x + b)²
On comparing it with the given expression, we get :-
So 2b = 12 and n = b²
b = 6
and so b² = 6² = 36.
⇒ n = 36
Hence, x² + 12x + 36 = (x + 6)² i.e. n = 36 is the final answer.
