## anonymous 4 years ago HELP PLEASE? =)

1. anonymous

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2. anonymous

@cbrusoe can u make factors of 98?????????

3. anonymous

$-\sqrt{49.2} + 3\sqrt{9.2} = -7\sqrt{2} + 9\sqrt{2} = 2\sqrt{2}$

4. campbell_st

well find the square numbers that are factors 98 = 49 x 2 18 = 9 x 2 so you will have $-\sqrt{49 \times 2} + \sqrt{9 \times 2} = - \sqrt{49} \times \sqrt{2} + \sqrt{9} \times \sqrt{2}$ the square root of 2 won't change but you can find the other square roots... then its like algebra... adding or subtracting like terms.

5. anonymous

thanks guys =)