Question

find the product of :- (ax+5b) (a²x²-5abx+25b²)​

Answer 1

Answer:

: \rm \bf 4a^2 -25b^24a

2

−25b

2

Solution Using Identity :

The product of (2a + 5b) and (2a - 5b)

Using Identity, \rm \bf (a+b) (a-b) = a^2 - b^2(a+b)(a−b)=a

2

−b

2

, We can find the product,

\begin{gathered} \therefore \rm (2a + 5b) (2a - 5b) \\ \implies \rm (2a)^2 - (5b)^2 \\ \implies \rm \bf 4a^2 - 25b^2 \end{gathered}

∴(2a+5b)(2a−5b)

⟹(2a)

2

−(5b)

2

⟹4a

2

−25b

2