Answer:
B
Explanation:
The entry A is the result of multiplying - x and 3x, that is
- x × 3x = - 3x² → B
-3x^2
A 3x * -x = -3x^2 so A = -3x^2
We can also find the value of B
B -x *5 = -5x
and C
C = 3x*2 = 6x
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