Don't you have to multiply the Area's ?
Answer:
C. x=2
Step-by-step explanation:
-3(x-4)=2x+4-x
-3x+12=x+4
+3x +3x
-----------------------
12=4x+4
-4 -4
-----------------------
8=4x
-- ---
4 4
-----------------------
x=2
The value of c for which the considered trinomial becomes perfect square trinomial is: 20 or -20
<h3>What are perfect squares trinomials?</h3>
They are those expressions which are found by squaring binomial expressions.
Since the given trinomials are with degree 2, thus, if they are perfect square, the binomial which was used to make them must be linear.
Let the binomial term was ax + b(a linear expression is always writable in this form where a and b are constants and m is a variable), then we will obtain:

Comparing this expression with the expression we're provided with:

we see that:

Thus, the value of c for which the considered trinomial becomes perfect square trinomial is: 20 or -20
Learn more about perfect square trinomials here:
brainly.com/question/88561
Answer:
8:45
Step-by-step explanation:
<em>Answer:</em>
<em>Hello There. The answer is 268</em>
Explanation
He spend £140 for 60 jumper
He sells 40%of jumper at £8 for each.
40%of 60
= 40/100 × 60
= 24 jumper
=sells at £8
= 24 ×8 =£192
After ,he sell buy 1 get one half price offer.
Ryan have 60% jumper of 60
= 36/2×8 +36/2×4
=144 + 72
= £216
Total earning= £192 + £216
=£408
So, profit = 408 - 140 = £268
Hope It Helps!
<h3>ItsNobody</h3>