Q. Solve the equation 2x2+16x+56=x2 to the nearest tenth.Answer: x=
Set Equation to Zero: First, we need to set the equation to zero by moving all terms to one side.Subtract x2 from both sides of the equation.2x2+16x+56−x2=x2−x2This simplifies to:x2+16x+56=0
Factor or Use Formula: Next, we need to factor the quadratic equation if possible, or use the quadratic formula to find the values of x. The quadratic equation is x2+16x+56=0. Let's try to factor it. We are looking for two numbers that multiply to 56 and add up to 16. The numbers 8 and 7 fit this requirement. So we can write the equation as: (x+8)(x+7)=0
Apply Zero Product Property: Now, we apply the zero product property, which states that if a product of two factors is zero, then at least one of the factors must be zero.So we set each factor equal to zero and solve for x:x+8=0 or x+7=0
Solve for x: Solve the first equation for x:x+8=0x=−8
Solve for x: Solve the second equation for x:x+7=0x=−7
Final Solutions: We have found two solutions for x. They are x=−8 and x=−7. Since we are asked to round to the nearest tenth, the solutions remain the same as they are already integers.
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