Question

x square + x - 20 = 0 solve quadratic equation by factorisation .​

Answer 1

Answer:

Solution

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x

2

+x−20=0

⇒x

2

+5x−4x−20

⇒x(x+5)−4(x+5)=0

⇒(x−4)(x+5)=0

Answer 2

Answer:

Solution

verified

Verified by Toppr

x

2

+x−20=0

⇒x

2

+5x−4x−20

⇒x(x+5)−4(x+5)=0

⇒(x−4)(x+5)=0

Answer 3

Answer:

Solution

verified

Verified by Toppr

x

2

+x−20=0

⇒x

2

+5x−4x−20

⇒x(x+5)−4(x+5)=0

⇒(x−4)(x+5)=0