please tell me the answer step by step
please only give answer not othere message
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1
Answer:
a)0
because 1-1 =0
b) 0
because 1-1=0
c) 0
because 1-1+1-1 =0
Answered by
1
Answer:
SEE YOUR ANSWER
Step-by-step explanation:
4.(a) (p+q) (p-q)
={1+(-1)} {1-(-1)}
=(1-1) (1+1)
=0×(2)
0(ANSWER)
(b) p³ + q³
=(p+q)³-3pq(p+q)
={1+(-1)}³-3×1×(-1){1+(-1)}
=(1-1)³-3×(-1)(1-1)
=(0)³+3×(0)
=0+0
=0(ANSWER)
(c)p³-p²+q²-pq
SEE IN IMAGE
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