Question

ayuda es para hoy plis!​

Answer 1

Respuesta:

1- (a+2)(a2+4a(4))

=(a+2)(a2+4a(4))

=(a)(a2)+(a)(4a(4))+(2)(a2)+(2)(4a(4))

=a3+16a2+2a2+32a

=a3+18a2+32a

2- (4+b)(16+8b+b2)

=(4+b)(16+8b+b2)

=(4)(16)+(4)(8b)+(4)(b2)+(b)(16)+(b)(8b)+(b)(b2)

=64+32b+4b2+16b+8b2+b3

=b3+12b2+48b+64

3- (a−5)(a2−10a+25)

=(a+−5)(a2+−10a+25)

=(a)(a2)+(a)(−10a)+(a)(25)+(−5)(a2)+(−5)(−10a)+(−5)(25)

=a3−10a2+25a−5a2+50a−125

=a3−15a2+75a−125

4- (a+2)(3)

=(a+2)(3)

=(a)(3)+(2)(3)

=3a+6