Question

How to Factorize x2+x-90

Answer 1

Answer:

Explanation: To factor an expression in the form ax2+bx+c , find two numbers that multiply to get c and add to get b. For the expression (x2−x−90) , the factors of -90 are ±1,±2,±3,±5,±6,±9,±10,±15,±18,±30,±45,and±90 (Note: ±2 means "plus or minus 2" or 2 and -2).

Answer 2

Answer:

we have the given expression as;

x^2 + x - 90

we need to factorise it.

let's use middle term splitting.

now,

=> x^2+x-90

=> x^2+10x-9x-90

=> x(x+10)-9(x+10)

=> (x+10)(x-9)

thus ,it's factorised.

thank you.

I hope it would help you.

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