Question

2 Calculaţi: a 3√7+2√7+10√7;
c 10√5-3√5+2√√5;
b 8√2+12√2+3√2;
d -3√3+8√3+6√3-9√3.​

Answer 1

Răspuns:

Salut

Explicație pas cu pas:

a) $3\sqrt{7}$+ $2\sqrt{7}$+ $10\sqrt{7}$= $5\sqrt{7}$+ $10\sqrt{7}$= $15\sqrt{7}$

b) $10\sqrt{5}$- $3\sqrt{5}$+ $2\sqrt{5}$= $7\sqrt{5}$+ $2\sqrt{5}$= $9\sqrt{5}$

c) $8\sqrt{2}$+ $12\sqrt{2}$+ $3\sqrt{2}$= $20\sqrt{2}$+ $3\sqrt{2}$= $23\sqrt{2}$

d) $-3\sqrt{3}$+ $8\sqrt{3}$+ $6\sqrt{3}$- $9\sqrt{3}$= $5\sqrt{3}$+ $6\sqrt{3}$- $9\sqrt{3}$= $11\sqrt{3}$- $9\sqrt{3}$= $2\sqrt{3}$

Sper că ți-am fost de folos!

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