September 2018 1 16 Report
1. Pada fungsi f(x)=x²-9, diketahui f(a)=0. Nilai a adalah?
2. Suatu belah ketupat ABCD panjang salah satu diagonalnya adalah(x+7) cm. Jika luasnya (2x²+17x+21) cm², hitunglahpanjang diagonal yang lain
Thanks before :)

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