رياضيات للصف السابع

 $5\left(3x+9\right)=$  

• 15x+45

• 15+45x

• 15x+9

• 45+15

4x(3x+11)

• 12x+44

• 12x+44x

•  $12x^2+44x$  

• 12+44x

6x(10+4)-3x(7+5x)=

• 60x+24x-21+35x

• 60x+24x-21x+15x

• $60x+24x-21x+15x^2$

• 60x+24+21x-15x

20x(4+5x)

• 80x+100x

• 80+100x

• 80x+100

• $80x+100x^2$

(5x+4x)-25x(4+2x)

• 9x+100x-50x

• $-91x-50x^2$

• $5x-4x-100x+50x^2$

• 9x-100x+50x