Question

Alguém me ajuda por favor?

Answer 1

Resposta:

1)

$1234/17=72.58$

$34907/45=775.71$

$20456x102= 2086512$

$45679*90=4111110$

2)

$\sqrt{100}-234+12^2.4 \\10 - 234 + 144.4\\10-234+576\\-234+586=352$

$13^3/10+\sqrt{144}.\sqrt{64} \\2197/10+12.8\\219,7+96=315,7$

3)

a) Já feito.

$(x+3)(x-1)\\x^2+3x -3 -x\\x^2+2x-3$

$(4x-2)(x+2)\\4 x^2 + 6 x - 4$