Question

Factorise ;;; 12(x^{2} +7)^{2} -8(x^{2} +7)(2x-1)-15(2x-1)^{2}

Answer 1

Answer:

2x+1=0

2x=-1

x=-1/2

p(x)=2x-4x+5

p(-1/2)=2(-1/2)-4(-1/2)+5

p(-1/2)=-1-2+5

=3+5

=8

:

Answer 2

Answer:

2x+1=0

2x=-1

x=-1/2

p(x)=2x-4x+5

p(-1/2)=2(-1/2)-4(-1/2)+5

p(-1/2)=-1-2+5

=3+5

=8

:

Step-by-step explanation: