Question

rationalise the expression given below and choose the correct answer
$(3 - 2 \sqrt{2)} \div (3 + 2 \sqrt{2}$
a)
$17 - 12 \sqrt{2}$
b)
$5 + \sqrt{2}$
c)
$4 + 8 \sqrt{5}$
d)
$9 + 3 \sqrt{10}$



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Answer 1

$\huge\red\star{{Hello!}}$

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$3-2\sqrt{2}}{3+2\sqrt{2}}$

= 3-2root2/3+2root2×3-2root2/3-2root2

=$3-2\sqrt}}^2{3^2+2\sqrt}}^2$

= $9-12\sqrt{2}}^2{3^2+2\sqrt{2}}$

= $17-12\sqrt{2}}\frac{17}}$

Hope it's helps you ☺️

Answer 2

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