Question

answer this guys plz

Answer 1

Answer:

c

Step-by-step explanation:

24/7,15/6 = a and b respectifly

Answer 2

Answer:

24/7, 15√2/7

Step-by-step explanation:

$Given:\frac{8+3\sqrt{2}+7-\sqrt{2}-3+4\sqrt{2}}{6-2\sqrt{2}}$

$=\frac{8+6\sqrt{2}+7-3}{6-2\sqrt{2}}$

$=\frac{12+6\sqrt{2}}{6-2\sqrt{2}}$

$=\frac{6(2+\sqrt{2})}{2(3-\sqrt{2})}$

$=\frac{3(2+\sqrt{2})}{3-\sqrt{2}}$

$=\frac{3(2+\sqrt{2})}{3-\sqrt{2}} * \frac{3+\sqrt{2}}{3+\sqrt{2}}$

$=>\frac{3(2+\sqrt{2})(3+\sqrt{2})}{(3-\sqrt{2})(3+\sqrt{2})}$

$=\frac{3(8+5\sqrt{2})}{3^2 - (\sqrt{2})^2}$

$=\frac{24+15\sqrt{2}}{9-2}$

$=\frac{24+15\sqrt{2}}{7}$

Now,

(24 + 15√2)/7 = (a + b√2)

a = 24, b = (15√2)/7.

Hope it helps!