Question

Multiply:
1. (5x + 3) by (7x + 2)
2. (2x + 8) by (x – 3)
3. (3x2 + y2) by (2x2 + 3y2)

Answer 1

Answer:

1)35x²+31x+6

2)2x²+2x-24

3)3y⁴+22y²+24

Answer 2

Answer:

1=35x2+10x+2

2=2x+24-2x2

3=6x4+6x4y4+3y4

Step-by-step explanation:

1. 5x(7x+2) + 3(7x+2)

=35x2+10x+21x+2

=35x2+10x+2

2. 2x(x-3) + 8(x-3)

= 2x2- 6x+ 8x + 24

=8x - 6x + 24 -2x2

= 2x+ 24 -2x2

3. 3x2(2x2+3y2)+ y2( 2x2+3y2)

=6x4+3x2y2+ 2x2y2+3y4

=6x4+ 6x4y4+3y4

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