(no links or files) Solve this equation using the quadratic formula. This question should be solved both ways. (1) Quadratic For
1 answer:
Quadratic formula is x = -b+ or- sq rt b^2-4ac / 2a a=2 b=5 c=-3 -5 +or- sqrt 5^2-4(2)(-3) / 2(2) -5 +or- sqrt 49/ 4 -5 + 7 /4 = 2/4 = 1/2 -5 - 7 /4 = -12/4 = -3 Factoring a*c is 2*-3 =-6 Factors of -6 that add to 5 are 6 and -1 Split 5x into +6x-1x 2x^2+6x-1x-3 and group 2x(x+3)-1(x+3) (x+3)(2x-1)=0 x+3=0 gives x=-3 2x-1=0 gives x=1/2
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Step-by-step explanation:
Answer:
7/8
Step-by-step explanation:
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z=3
Step-by-step explanation:
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Step-by-step explanation:
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