Question

alguém pode me ajudar

Answer 1

g)
$2\sqrt2+\sqrt8$
$2\sqrt2+\sqrt{2^3}$
$2\sqrt2+\sqrt{2^2\cdot2^1}$
$2\sqrt2+2\sqrt2$
$4\sqrt2$

h)
$\sqrt{50}-\sqrt{98}$
$\sqrt{5^2\cdot2^1}-\sqrt{2^1\cdot7^2}$
$5\sqrt2-7\sqrt2$
$-2\sqrt2$

i)
$\sqrt{28}-10\sqrt7$
$\sqrt{2^2\cdot7}-10\sqrt7$
$2\sqrt2-10\sqrt7$
$-8\sqrt7$

j)
$2\sqrt{50}+6\sqrt2$
$2\sqrt{2^1\cdot5^2}+6\sqrt2$
$2\cdot5\sqrt2+6\sqrt2$
$10\sqrt2+6\sqrt2$
$16\sqrt2$

l)
$3\sqrt8-7\sqrt{50}$
$3\sqrt{2^3}-7\sqrt{2^1\cdot5^2}$
$3\sqrt{2^1\cdot2^2}-7\sqrt{2^1\cdot5^2}$
$3\cdot2\sqrt2-7\cdot5\sqrt2$
$6\sqrt-35\sqrt2$
$-29\sqrt2$

m)
$\sqrt{12}-9\sqrt3+\sqrt{75}$
$\sqrt{2^2\cdot3^1}-9\sqrt3+\sqrt{3^1\cdot5^2}$
$2\sqrt3-9\sqrt3+5\sqrt3$
$-2\sqrt3$