Question

Des compuneți produsul folosind factorul comun :a)4la5+4la8-4la4
b)3la3+6la5+3la4
c)xla2+xla3+xla4
d)5la3•6+5la4•7
e)3xla2y+2xyla2+4xy
f)7la5•x+7la4•y+49z

Answer 1

Răspuns:

a)

${4}^{4} (4 + {4}^{4} - 1) = {4}^{4} \times 259 = 66304$

b)

${3}^{3} (1 + {2}^{5} \times {3}^{2} + 3) = 27 \times 292 = 7884$

c)

${x}^{2} (1 +x + {x}^{2} )$

d)

${5}^{3} (6 + 35) = 125 \times 41 = 5125$

e)

$xy(3x + 2y + 4)$

f)

${7}^{2} ( {7}^{3}x + {7}^{2} y +z)$