Question

Factorise the following
x²+16+64

Answer 1

Answer:

x2+16 +64

Step-by-step explanation:

x2+80=0

x2=-80

x=

$\sqrt{ - 80}$

x=root 80 irota

Answer 2

Answer:

x²+16x+64

=x²+(8+8)x+64

=x²+8x+8x+64

=x(x+8)+8(x+8)

=(x+8)(x+8)

=(x+8)²

=x²+8²

=x²+64

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