If a=4, b= -2. Find the value of a² + ab- b²
Answers
Answered by
0
Answer:
12
Step-by-step explanation:
(4)ka squre + 4(-2) - (-2) ka squre
16-8+4
20-8
12
Answered by
0
Answer:
a=4
b=-2
a²+ab-b²
4²-8+2²
16-8+4
20-8
12
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