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# help pls!!

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find all solutions to the equation 10x^2 - 7x - 6 = 0.

thank you!!

Dec 20, 2020

### 3+0 Answers

#1
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Use quadratic equation: a=10, b=-7, c=-6, have you not learned the quadratic formula? Search it up, this problem is extremely easy, giving the answer would be funny. this is systematically solved problem

Dec 20, 2020
#2
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In Quadratic Formula      for  this quadratic    a = 10    b = -7     and c = -6

$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$          becomes

$$x = {7 \pm \sqrt{7^2-4(10)(-6)} \over 2(10)}$$      which will give you two values of x which are the 'roots' or ' zeroes'  of the equation.....

Dec 20, 2020
#3
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The quad formula is  fine.....I always like to see if  I can factor, first, before resorting to the "Q"....

(5x - 6) ( 2x + 1)     =   0

Setting each  factor to 0  and solving  for  x produces

5x  - 6   = 0                      2x  +  1   =   0

5x   =  6                          2x  =  -1

x =  6/5                          x  = -1/2   Dec 20, 2020