zapisz w jak najprostszej postaci:
(proszę też o działania jak do tego doszliście)
a) 6a-15/3 + 3-5a=
b) 12b-9/3 + 12b-8/2=
c)5n²- 2n - 4n²+40n/8=
d)8m²-10/2 - 20m²+15/5=
e)3x² + a + 1/7 * 14x²-21/6=
f)15p²-9p/6 - 6 * 1-6p/4=
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a) 6a-15/3 + 3-5a= a-5+3=a-2
b) 12b-9/3 + 12b-8/2=24b-3-4=24b-7
c)5n²- 2n - 4n²+40n/8=n²-2n+5n=n²+3n
d)8m²-10/2 - 20m²+15/5=-12m²-5+3=12m²-2
e)3x² + a + 1/7 * 14x²-21/6=3x²+a+2x²-7/2=5x²+a-7/2
f)15p²-9p/6 - 6 * 1-6p/4=15p²-3p/2-6*1-3p/2=15p²-1,5p-6-1,5p=15p²-3p-6=3(5p²-p-2)