Question

Solve the Quadratic equation by factorisation method:X²+3x–10=0​

Answer 1

Answer:

(x-2)(x+5) are the factors

Step-by-step explanation:

X^2+3x-10=0

Multiply x^2 with -10=

-10x^2

factors of -10x^2 are +5x and -2x

substitute factors of -10x^2 in the place of +3x

x^2+5x-2x-10=0

x(x+5)-2(x+5)=0

(x-2)(x+5)=0

(x-2)(x+5)are factors of x^2+3x-10

value of (x-2) is =(x-2)=0

x=2

value of (x+5) is =(x+5)=0

x=-5

HENCE VALUE OF X CAN BE +2 OR -5

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