Question

x^+3x-40 factorise by splitting middle term plz plz tell answer step by step
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Answer 1

Given :

• f ( x ) = x² + 3x - 40

To Find :

• Factors of the given polynomial

Solution :

⇒ x² + 3x - 40

By Splitting middle term

⇒ x² + 8x - 5x - 40

⇒ x ( x + 8 ) - 5 ( x + 8 )

⇒ ( x + 8 ) ( x - 5 )

Answer 2

$\huge\boxed{\fcolorbox {red}{yellow}{Answer}}$

-> x² + 3x - 40

By Splitting middle term :-

-> x² + 8x - 5x - 40

-> x ( x + 8 ) - 5 ( x + 8 )

-> ( x + 8 ) ( x - 5 )

-> x = -8 , x = 5

Hope it Helps You ☺️