a)√18+4√2=?
b)√48-√27=?
c)∛147-∛75=?
d)∛32-∛108=?
e)2√24+2√54-√150=?
f)√12+√147
√3
a) √18+4√2 = √9 * √2 +4√2 = 3√2 + 4√2 = 7√2
b) √48 - √27 = √16 * √3 - √9 * √3 = 4√3 - 3√3 = √3
c) ∛147-∛75 = czy to jest dobrze przepisane?
d) ∛32 - ∛108 = ∛8 * ∛4 - ∛27 * ∛4 = 2∛4 - 3∛4 = -∛4
e) 2√24+2√54-√150 = 2 * √4 * √6 + 2 * √9 * √6 - 2 * √25 * √6 = 2 * 2 * √6 + 2 * 3 * √6 - 2 * 5 * √6 = 4√6 + 6√6 - 10√6 = 0
f)
√12+√147 = (√12+√147)√3 = √36 + √441 = 6 + 21 = 27 = 9
√3 √3 * √3 √9 3 3
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a) √18+4√2 = √9 * √2 +4√2 = 3√2 + 4√2 = 7√2
b) √48 - √27 = √16 * √3 - √9 * √3 = 4√3 - 3√3 = √3
c) ∛147-∛75 = czy to jest dobrze przepisane?
d) ∛32 - ∛108 = ∛8 * ∛4 - ∛27 * ∛4 = 2∛4 - 3∛4 = -∛4
e) 2√24+2√54-√150 = 2 * √4 * √6 + 2 * √9 * √6 - 2 * √25 * √6 = 2 * 2 * √6 + 2 * 3 * √6 - 2 * 5 * √6 = 4√6 + 6√6 - 10√6 = 0
f)
√12+√147 = (√12+√147)√3 = √36 + √441 = 6 + 21 = 27 = 9
√3 √3 * √3 √9 3 3