Question

FACTORISE

Y²+6Y-27

plz plz plz​

Answer 1

Answer:

y=(-9) or y=3

Step-by-step explanation:

Y^2 +6Y -27

Y^2 -3Y + 9Y -27

Y (Y-3) 9 (Y-3)

(Y+9)(Y-3)

Y=(-9) or Y=3

Answer 2

y^2 + 6y - 27

By middle term splitting

We get,

y^2 + 9y - 3y - 27

Taking common term

Therefore,

y(y + 9) - 3 ( y - 9)

(y + 9)( y - 3)

Middle term splitting:-

Multiplying first and last term

By subtracting or by adding the answer should me equal to the mid term of the equation

Taking common term

standard form of equation :- ax^2 + bx + c = 0

In some cases we can't use middle term splitting therefore, there are different method we can find solution such as by using quadratic formula or by squaring the equation.