2. Evaluate, after simplification.
a. 14x2 (x + y - 2xy) for x = -1, y = 2
Answers
Answered by
2
Answer:
= 28[-1+2-2×(-1)×2]
= 28[1-2×(-2)]
= 28[1+4]
= 28×5
= 140
Answered by
2
Step-by-step explanation:
=28 (-1 + 2 - 2×-1 × 2 )
= -28+56-56×-28×56
=784 ×56
=43904
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