The positive square of 7 +
is
7 + √48
= 7 + √(16×3) = 7 + 4√3 ( try to break it in form of (a+b)2)
= (2)2 + (√3)2 + 2×2×√3 = (2+√3)2 = (2+√3) (2+√3).
20
The positive square of 7 + is
7 + √48
= 7 + √(16×3) = 7 + 4√3 ( try to break it in form of (a+b)2)
= (2)2 + (√3)2 + 2×2×√3 = (2+√3)2 = (2+√3) (2+√3).