Question

Factorise x^2+10xy+21y^2 by middle term factorisation

Answer 1

Answer:

hope it helps u ✌✌✌✌✌✌✌

Answer 2

Answer:In middle term spilitting or quadratic trinomial you have to find two number that if multplied the product should be c and,if added and b

a+b+c

a+b1+b2+c

NOTE - a will be a variable so at the end of b1 and b2 there should be the variable of position a

Step-by-Step explanation

$x^{2} + 3xy+7xy+21y{2}\\x(x+3y) 7y(x+3y)\\(x+7y) (x+3y)$