Latihan soal

Jawaban:

nih jawabannya maaf lama ngetik

1). 6x²+8x

2). -2³-6x²+10x

3). (2x+3)(x+5) = 2x²+10x+3x+15

= 2x²+13x+15

4). (x-4) (2x+2) = 2x²+2x-8x-8

= 2x²-6x-8

5). (3x +5) (2x+6)= 6x²+18x+10x+30

= 6x²+28x+30