Uprość wyrażenia (2a+3)(3a-1), (5x-4)-3(2x-1), (2a+1)nawias do kwadratu, (2b-3)nawias do kwadratu, (3a-2b)(3a+2b),

(2a+3)(3a-1)=6a^2-2a+9a-3=6a^2+7a-3 (5x-4)-3(2x-1)=(5x-4)-6x+3=5x-4-6x+3=-x-1 (2a+1)^2=4a^2+4a+1 (2b-3)^2=4b^2-12b+9 (3a-2b)(3a+2b)=9a^2-ab^2

(2a+3)(3a-1) = 6a²-2a+9a-3 = 6a²+7a-3 (5x-4)-3(2x-1) = 5x-4-6x+3 = -x-1 (2a+1)nawias do kwadratu, = (2a+1)(2a+1) = 4a²+4a+1 (2b-3)nawias do kwadratu, = 4b²-12b+9 (3a-2b)(3a+2b) = 9a²-4b²

6akwadrat+7a+3 -x-1 4a kwadrat +4a+1 4bkwadrat-12ab+9 9akwadrat-4bkwadrat