Question

please answer these me all questions ​

Answer 1

Answer:

13. y-30. 14. x-11.

Step-by-step explanation:

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Answer 2

Answer:

1) middle term splitting

6×15 ,6±15=21ans

=y²-6y-15y+90

=y(y-6)-15(y-6)

(y-6)(y-15) Answer

we have to do middle term splitting

means we have to multiply 1 term and 3 term than we have to find out the factor of the ans that gives us the digit which is in the middle on Q than we have to regrouping