Question

Find the following products:
(i) (x + 3y) (2x2 – 3xy + 9y?) (ii) (7a – 5b)(49a² + 35ab + 2562)
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Answer 1

Answer:

$x^{3} +27^3$

I think is it should be x^2 only

Step-by-step explanation:

(x+3y)[$(x+3y)[x^{2} -(x)(3y)+(3y)^{2}]$

$x^3+27y^3$

Answer 2

Answer:

pls mark it as brainliest

Step-by-step explanation:

(a^3-b^3)=(a-b)(a^2+ab+b^2)

Hence, (7a-5b)(49a^2+35ab+25b^2)

=(7a-5b)[(7a)^2+(7a*5b)+(5b)^2]

=[(7a)^3-(5b)^3]

where, a=(7a)^3 and b=(5b)^3