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5 votes
-4x ²-3x+2=0

can you help me solve this

User ELKA
by
7.8k points

1 Answer

5 votes

Answer:

x = (-3 ±√41)/8

Explanation:

When you match your equation to the form ...

... ax² +bx +c = 0

you can see that ...

  • a = -4
  • b = -3
  • c = 2

These are the values you use in the quadratic formua to find the solutions for x.

... x = (-b ±√(b²-4ac))/(2a) . . . . . . the quadratic formula

... x = (-(-3) ±√((-3)² -4(-4)(2)))/(2(-4)) . . . . fill in a, b, c

... x = (3 ±√(9+32))/(-8) . . . . simplify a bit

... x = (-3 ±√41)/8 . . . . . . put the minus sign in the numerator

User Nicholas Kadaeux
by
7.4k points

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