2x2-4x-15=0 Two solutions were found : x = (4-√136)/4=1-1/2√ 34 = -1.915 x = (4+√136)/4=1+1/2√ 34 = 3.915 Step by step solution : Step 1 :Equation at the end of step 1 : (2x2 - 4x) - 15 = 0
Take the square root of each side and solve. To make things simple, a general formula can be derived such that for a quadratic equation of the form ax²+bx+c=0 the solutions are x= (-b ±
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2x2 − x − 15 2 x 2 - x - 15 For a polynomial of the form ax2 +bx+ c a x 2 + b x + c, rewrite the middle term as a sum of two terms whose product is a⋅c = 2⋅−15 = −30 a ⋅ c = 2 ⋅ - 15 = - 30 and
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Explain math equation
One plus one is two.