HELP ASAPAND IF YOU COULD EXPLAIN, THATD BE GREAT
1 answer:
Answer:
It is D.
Step-by-step explanation:
Combine:
4x-7=2x-3
Solve, subtract 2x on both sides:
4x-2x-7=2x-2x-3
2x-7=3
Add 7 on both sides:
2x-7+7=3+7
2x=10
Divide 2 on both sides:
x=5
Plug in the x value in each equation:
4(5)-7=13
2(5)-3=7
Now plug in into the equation
(13×4)(4)
52/4=13
It is D.
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(x+1)(x-4)-(x-2) = 0
x²-4x+x-4-x+2 = 0
x²-4x-2 = 0
/\ = (-4)² - 4*1*(-2)
/\ = 16 + 8
/\ = 24
x = (-(-4)+/- \/24) / 2
x = (4+/-\/4*6)/2
x = (4+/-2\/6)/2
x = 2+/-\/6
x' = 2+\/6
x" = 2-\/6
