Question

efetue as operações com radicais

a) 15√2 - 7√2 + 8√2 - √2

b) 7√3 + 10√3 - 5√3 + √3

Answer 1

Olá.

$\mathsf{A}\\\mathsf{15\sqrt2-7\sqrt2+8\sqrt2-\sqrt2=8\sqrt2+7\sqrt2=\boxed{\mathsf{15\sqrt2}}}\\\\\mathsf{B}\\\mathsf{7\sqrt3+10\sqrt3-5\sqrt3+\sqrt3=17\sqrt3-4\sqrt3=\boxed{\mathsf{13\sqrt3}}}$

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Bons estudos.