Przekształc podane wyrażenia na sumy algebraiczne: a)(a+2)(a-2) b)(10x +1)(10x-1) c)(4a-2b)(4a+2b) d)(½t+3q)(½t-3q)

a)(a+2)(a-2)=a²-2a+2a-4=a²-4 b)(10x +1)(10x-1)=100x²-10x+10x-1=100x²-1 c)(4a-2b)(4a+2b)=16a²+8ab-8ab-4b²=16a²-4b² d)(½t+3q)(½t-3q)=¼t²-1½tq+1½tq-9q²=¼t²-9q²

a)(a+2)(a-2)=a²-4 b)(10x +1)(10x-1)=100x²-1 c)(4a-2b)(4a+2b)=16a²-4b² d)(½t+3q)(½t-3q)=¼t²-9q²

a) (a+2)(a-2)=a² -2a +2a-4 b)(10x +1)(10x-1)=100x²-10x+10x-1 c)(4a-2b)(4a+2b)=16a²+8ab-8ab-4b² d)(½t+3q)(½t-3q)=¼t² -1,5tq+1,5tq-9q²