1.

Resolve the quadratic trinomials into factors:3x2 + 22x + 35

Answer»

We have,

3x2 + 22x + 35

The coefficient of x2 is 3

The coefficient of x is 22

Constant term is 35

So, we express the middle term 22x as 15x + 7x

3x2 + 22x + 35 = 3x2 + 15x + 7x + 35

= 3x (x + 5) + 7 (x + 5)

= (3x + 7) (x+ 5)



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