What are the factors of x2 + 3x – 4? (x + 4) and (x – 4) (x + 3) and (x – 4) (x + 4) and (x – 1) (x + 3) and (x – 1)
2 answers:
Answer:
so the factors of x²+3x-4 are (x-1)(x+4
Step-by-step explanation:
Let x²+3x-4=0
by using sum and product rule
x²+4x-1x-4=0
Taking common
x(x+4)-1(x+4)=0
(x-1)(x+4)=0
i hope this will help you :)
Answer:
(x - 1) (x + 4)
Step-by-step explanation:
Product = -4
Sum = 3
Factors = -1 , 4
x² + 3x - 4 = x²- 1x + 4x - 4
= x(x -1) + 4(x - 1)
= (x - 1) (x + 4)
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Hope that helps :)
120/2=60 (sum of both lengths)
4x+4=60
4x=56
x=14
length=46
width=14
