Question

Tolong bantu jawab, nanti saya jadikan jawaban terbaik

Aljabar kelas 7 ​

Answer 1

Jawab:

1. 35 ab

2. 16- 6a

3. 2x²- 5x-3

4. 2x³-x²-13x+5

Maaf kalau salah

Answer 2

jawaban:

1.7a(5)b

=35ab

2.2(8−3a)

=(2)(8+−3a)

=(2)(8)+(2)(−3a)

=16−6a

=−6a+16

3.2x+1)(x−3)

=(2x+1)(x+−3)

=(2x)(x)+(2x)(−3)+(1)(x)+(1)(−3)

=2x2−6x+x−3

=2x2−5x−3

4.(2x+5)(x2−3x1)

=(2x+5)(x2+−3x)

=(2x)(x2)+(2x)(−3x)+(5)(x2)+(5)(−3x)

=2x3−6x2+5x2−15x

=2x3−x2−15x

maaf klau salah