Doprowadź do najprostszej postaci.
a) (5-5a)(5+5a) + (5-5a)
b) (4a-1) - (4a+1)
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a. (5-5a)(5+5a)+(5-5a)kwadrat=25+25a-25a-25akwadrat+25-25akwadrat=50
b. (4a-1)kwadrat-(4a+1)kwadrat=16akwadrat-1-16akwadrat+1=0
a) (5-5a)(5+5a) + (5-5a)^2= 25+25a-25a-25a^2+25-25a-25a+25a^2=50-50a=50(1-a)
b) (4a-1)^2 - (4a+1)^2= 16a^2-4a-4a+1-16a^2-4a-4a-1= -16a
Proszę!
może dasz naj?
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a. (5-5a)(5+5a)+(5-5a)kwadrat=25+25a-25a-25akwadrat+25-25akwadrat=50
b. (4a-1)kwadrat-(4a+1)kwadrat=16akwadrat-1-16akwadrat+1=0
a) (5-5a)(5+5a) + (5-5a)^2= 25+25a-25a-25a^2+25-25a-25a+25a^2=50-50a=50(1-a)
b) (4a-1)^2 - (4a+1)^2= 16a^2-4a-4a+1-16a^2-4a-4a-1= -16a
Proszę!
może dasz naj?