Question

Factorize 3x^2 + 4x + 15
please answer fast ..​

Answer 1

Answer:

To Factorize:-

• 3x²+4x-15

Solution:-

Using Splitting The Middle Term method

Here,a=3,b=4,c=-15

Product=A×C=3×15=-45

Sum=B=4

Find two numbers whose product= -45

and sum= 4

that numbers are 9 and 5

We can use -5 here,so that sum can be 4

Let them be with x

Therefore

3x²+9x-5x-15

3x(x+3)-5(x+3)

(3x-5)(x+3)