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Mathematics for IGCSE & O level - Indices 2 (Section 1 - No. 23)
Which is the simplified form of (x
1/2
+y
1/2
)
2
?
x + y
x + y + 2x
1/2
y
1/2
x
2
+ y
2
x + y + xy
Forklaring
(x
1/2
+ y
1/2
)
2
= x
1/2*2
+ 2x
1/2
y
1/2
+ y
1/2*2
= x + 2x
1/2
y
1/2
+ y.
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