Question

Tính bằng cách thuận tiện nhất:

17 x \(\frac{3}{4}\)- 17 x 0,25 + 17 x \(\frac{1}{2}\)

Answer 1

\(17\cdot\frac{3}{4}-17\cdot0,25+17\cdot\frac{1}{2}\)

\(=17\cdot0,75-17\cdot0,25+17\cdot0,5\)

\(=17\cdot\left(0,75-0,25+0,5\right)\)

\(=17\cdot1\)

\(=17\)

Answer 2

\(17\times\frac{3}{4}-17\times0,25+17\times\frac{1}{2}\)\(=17\times\frac{3}{4}-17\times\frac{1}{4}+17\times\frac{1}{2}\)\(=17\times\left(\frac{3}{4}-\frac{1}{4}+\frac{1}{2}\right)\)

\(=17\times\left(1\right)\)\(=17\)

Answer 3

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

Answer 4

đéo bt

Answer 5

\(17\times\frac{3}{4}-17\times0,25+17\times\frac{1}{2}\)

\(=17\times0,75-17\times0,25+17\times0,5\)

\(=17\times\left(0,75-0,25+0,5\right)\)

\(=17\times1\)

\(=17\)

Linz