If T(x)=(2x-1)(x+1)+4 and T(w)=4, find the values of w 求工式 步驟(答案:1/2,-1)?

2017-09-14 8:29 pm

回答 (1)

2017-09-14 8:35 pm
✔ 最佳答案
Sol
T(w)=(2w-1)(w+1)+4=4
(2w-1)(w+1)=0
2w-1=0 or w+1=0
w=1/2 or w=-1


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