Q. Solve the equation x2−2x−10=4x to the nearest tenth.Answer: x=
Rewrite equation in standard form: Rewrite the equation in standard form by moving all terms to one side.x2−2x−10=4xSubtract 4x from both sides to get:x2−2x−10−4x=0Combine like terms:x2−6x−10=0
Solve using quadratic formula: Solve the quadratic equation using the quadratic formula. The quadratic formula is x=2a−b±b2−4ac, where a=1, b=−6, and c=−10. First, calculate the discriminant (b2−4ac): (−6)2−4(1)(−10)=36+40=76
Find two solutions: Use the discriminant to find the two solutions for x.x=2⋅1−(−6)±76x=26±76
Calculate solutions: Calculate the two solutions for x.First solution:x=26+76x≈26+8.7178x≈214.7178x≈7.4 (rounded to the nearest tenth)Second solution:x=26−76x≈26−8.7178x≈2−2.7178x≈−1.4 (rounded to the nearest tenth)
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