Fibd the value of x
X^2-19x+84
Answers
Answered by
3
Answer:
x=7 or x= 12
Step-by-step explanation:
x²-19x+84
=>x²-(12x+7x)+84
=>x²-12x-7x+84
=>x(x-12)-7(x-12)
=>(x-7)(x-12)
✏x-7=0
=>x=7
✏x-12=0
=>x=12
Answered by
1
Answer:
x=7,12
Step-by-step explanation:
x²-19x+84
=>x²-(12x+7x)+84
=>x²-12x-7x+84
=>x(x-12)-7(x-12)
=>(x-7)(x-12)
x-7=0
=>x=7
x-12=0
=>x=12
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