Odpowiedź:
Szczegółowe wyjaśnienie:
3a+4b-5a-2b= -2a+2b
5a+a-b+7b=6a+6b
-7(x+y)= -7x-7y
9(2a-b)= 18a-9b
(a+4)(b+2)=ab+2a+4b+8
(2a-6)(3+b)= 6a+2ab-18-6b
P=(x+3)(x-2)=x^2-2x+3x-6=x^2+x-6
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Odpowiedź:
Szczegółowe wyjaśnienie:
3a+4b-5a-2b= -2a+2b
5a+a-b+7b=6a+6b
-7(x+y)= -7x-7y
9(2a-b)= 18a-9b
(a+4)(b+2)=ab+2a+4b+8
(2a-6)(3+b)= 6a+2ab-18-6b
P=(x+3)(x-2)=x^2-2x+3x-6=x^2+x-6