Solve by completing the square.q2+28q−11=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.q=_____ or q=_____
Q. Solve by completing the square.q2+28q−11=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.q=_____ or q=_____
Rewrite in standard form:q2+28q−11=0Rewrite the equation in the form of x2+bx=c.Add 11 to both sides.q2+28q−11+11=0+11q2+28q=11
Complete the square:q2+28q=11Choose the equation after completing the square.Since (28/2)2=196, add 196 to both sides.q2+28q+196=11+196q2+28q+196=207
Identify factored form:q2+28q+196=207Identify the equation after factoring the left side.q2+28q+196=207(q+14)2=207
Take square root:(q+14)2=207Identify the equation after taking the square root on both sides.Take the square root of both sides of the equation.(q+14)2=207q+14=±207
Isolate variable: We found:q+14=±207Choose the equation after isolating the variable q.To isolate q, subtract 14 from both sides of the equation.q+14−14=±207−14q=−14±207
Isolate variable: We found:q+14=±207Choose the equation after isolating the variable q.To isolate q, subtract 14 from both sides of the equation.q+14−14=±207−14q=−14±207We have:q=−14±207What are the two values of q?Round the non-terminating values to the nearest hundredth.q=−14+207 implies q≈−14+14.39.q0 implies q1.Values of q: q3, q4
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