Question

Jawabannya? tolong sama caranya

Answer 1

1.12a+18=a(12+18)
3.7a^{3}-21a^{2}=a^{2}(7a-21)
5.15a^{6}+10a^{4}=5a^{4}(3a^2+2)
7.16x^{2}y-24xy^{2}=4xy(4x-6y)
9.12a^{2}x^{3}y^{5}+16a^{5}x^{4}y^{2}=4a^{2}x^{3}y^{2}(3y^{3}+4a^{3}xy^{2}
10.a(b+c)+4(b+c)=(ab+ac)+(4b+4c)
                          =ab+ac+4b+4c
13.2a(a-b)-b(a-b)=(2a^{2}-2ab)-ab+b^{2}=2a^{2}-3ab+b^{2}
15.5x(x-3y)+2y(x-3y)=(5x^{2}-15xy)+(2xy-6y^{2})
                               =5x^{2}-6y^{2}-13xy
17.a^{2}b+a^{2}b^{2}-abc=ab(a+ab-c)
19.24p^{2}-12p^{2}q-16p^{3}r=4p^{2}(6-3q-4pr)
21.6x^{4}+15x^{3}+9x^{2}=3x^{2}(2x^{2}+5x+3)

note x^{2}=x pangkat 2