Question

factorise x2-45x-2250

Answer 1

Step-by-step explanation:

Answer:

x=45,x=-50

Method 1:

We have to factorise it .

x^2+5x-2250

D=b^2-4ac

a=1 ,b=5,c=-2250

Therefore,

D= 25-4×1×-2250

D=25+9020

D=9025

x=-b+√D÷2a

x=-b-√D÷2a

Therefore,

x=-5+√9025÷2

x=90÷2

x=45

x=-5+√9025÷2

x=-5-95÷2

x=-100÷2

x=-50

Method 2:

x^2+5x-2250

x^2+50x-45x-2250

x(x+50)-45(x+50)

(x+50) (x - 45)

Therefore,

x=-50,x=45

These are two above methods to solve this equation

Answer 2

Answer:

Step-by-step explanation:

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