Factored form of x^2-3x-4
2 answers:
Answer:
x=4,x=-1
Step-by-step explanation:
x2-3x-4
To factorise we will need to get two numbers that when added it will give -3 and the same two numbers when multiplied it will give you-4
The two numbers involved is -4 and +1
x2-4x+x-4
Let's factorise
x(x-4)+1(x-4)
(x-4)(x+1)
x-4=0
Make x the subject of formula
x=4
x+1=0
Let's make x the subject of formula
x=-1
(x + 1) x (x - 4). When you check it you will get your original expression.
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Answer:
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Step-by-step explanation:
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