If a - b = 4 and a + b = 6; find :
(1) a² +b²
(ii) ab
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a- b=4
a+ b=6
2a= 10
a= 10/2
a =5
put a =5 in equation ii)
a+ b= 6
5+ b= 6
b= 6-5
b= 1
a=5
b=1
a2+b2
25+ 1
26
a×b
5×1
5
I hope it may help you
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