Step-by-step explanation:
4) a) add up to +5x
b) multiply to -14
5) x^2 - 4x + 3 = (x - 3)(x - 1)
341
step-by-step explanation:
all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.
that is the sum
there are no other answers without knowing the variables values