Question

(iii) (x + 5) (x + 6) (x + 7)​

Answer 1

Answer:

Step-by-step explanation:

Now let's see

First of all (x+5)(x+7) =

x²+12x+35

Therefore (x+5)(x+7)(x+6)=

(x²+12x+35)(x+6)

= x³+18x²+107x+210

Answer 2

Answer:

x³+18x²+107x+210

Step-by-step explanation:

First expand (x +5)(x+6)

to give you...

=>x²+6x+5x+30

Simplify...

=>x²+11x+30

Now you can multiply it with (x+7) ...

x³+7x²+11x²+77x+30x+210

Simplify and this will give us the answer ...

=> x³+18x²+107x+210