Question

Which is the exact value of the expression the square root of 32. − the square root of 50. + the square root of 128.?

2the square root of 7.

7the square root of 2.

22the square root of 2.

2the square root of 55.

Answer 1

\[\sqrt{32}-\sqrt{50}+\sqrt{128}\]

Answer 2

so u needto simplify

Answer 3

\[\sqrt{32}=\sqrt{16}*\sqrt{2}=4\sqrt{2}\]
\[-\sqrt{50}=-\sqrt{25}*\sqrt{2}=-5\sqrt{2}\]
and
\[\sqrt{128}=\sqrt{64}*\sqrt{2}=8\sqrt{2}\]
so rewrite ur equation substituting the values and u get:
\[4\sqrt{2}-5\sqrt{2}+8\sqrt{2}=(4-5+8)\sqrt{2}\]

Answer 4

simplify whats in the parenthasis and u will get us answer