Question

Help please

Answer 1

options are:
a) 1 minus 3 square root of 2

b)1 plus 7 square root of 2

c)1 plus square root of 58

d)1 plus square root of 42

Answer 2

Numbers with numbers, surds with surds

Answer 3

@.Sam. i don't understand wat u mean?

Answer 4

First, you need to take care of the parentheses.
The first set of parentheses is unnecessary, so just drop it.
The second set of parentheses has a negative sign to its left. That is the same as multiplying everything inside the parentheses by -1.

Answer 5

When you multiply -1 by what is inside parentheses, just change every sign inside the parentheses, and drop the parentheses.

Answer 6

For example: -(x - 4) = -x + 4

Answer 7

\[(4+\sqrt{50})-(3-\sqrt{8})\]
\[4-3+\sqrt{50}+\sqrt{8}\]

Answer 8

how do i solve the square root?

Answer 9

Split the root 50 and root 8 using greatest common denominator GCD you get
\[=\sqrt{25}\sqrt{2}+\sqrt{4}\sqrt{2}\]
\[=5\sqrt{2}+2\sqrt{2}\]
\[=7\sqrt{2}\]

Answer 10

@.Sam. thanks

Answer 11

\( (4 + \sqrt{50}) - (3 - \sqrt{8}) \)

Drop the first set of parentheses since they are unnecessary.

\( 4 + \sqrt{50} - (3 - \sqrt{8}) \)

Multiply out the second set of parentheses by -1.

\( 4 + \sqrt{50} - 3 + \sqrt{8} \)

Rearrange the expression to have the numbers together and the roots together.

\(4 - 3 + \sqrt{50} + \sqrt{8} \)

Combine the numbers together

\(1 + \sqrt{50} + \sqrt{8} \)

Factor the largest perfect square out os each square root.

\(1 + \sqrt{25 \times 2} + \sqrt{4 \times 2} \)

\(1 + \sqrt{25}\sqrt{2} + \sqrt{4}\sqrt{2} \)

\(1 + 5\sqrt{2} + 2\sqrt{2} \)

Combine the root parts

\(1 + 7\sqrt{2} \)

Answer 12

@mathstudent55 thank you

Answer 13

wlcm