Q. Solve the following equation for y.2y−3=3y2−10xy=□
Square both sides: We have the equation y=3y2−10y. To solve for y, we need to square both sides of the equation to eliminate the square root.(y)2=(3y2−10y)2
Combine like terms: Squaring both sides gives us: y2=3y2−10y
Factor out common term: To solve for y, we need to move all terms involving y to one side of the equation to set it to zero.y2−3y2+10y=0
Set each factor equal to zero: Simplify the equation by combining like terms. −2y2+10y=0
Solve for y: Factor out the common term y.y(−2y+10)=0
Check solutions: Set each factor equal to zero and solve for y.y=0 or −2y+10=0
Check solutions: Set each factor equal to zero and solve for y. y=0 or −2y+10=0 Solve the second equation for y. −2y+10=0 −2y=−10 y=5
Check solutions: Set each factor equal to zero and solve for y. y=0 or −2y+10=0 Solve the second equation for y. −2y+10=0 −2y=−10 y=5 We have two solutions for y, y=0 and y=5. However, we need to check if both solutions satisfy the original equation.
Check solutions: Set each factor equal to zero and solve for y. y=0 or −2y+10=0 Solve the second equation for y. −2y+10=0 −2y=−10 y=5 We have two solutions for y, y=0 and y=5. However, we need to check if both solutions satisfy the original equation. Check y=0 in the original equation. y=01 y=02 y=03 This solution is valid.
Check solutions: Set each factor equal to zero and solve for y. y=0 or −2y+10=0 Solve the second equation for y. −2y+10=0 −2y=−10 y=5 We have two solutions for y, y=0 and y=5. However, we need to check if both solutions satisfy the original equation. Check y=0 in the original equation. y=01 y=02 y=03 This solution is valid. Check y=5 in the original equation. y=05 y=06 y=07 y=08 This solution is also valid.
More problems from Domain and range of square root functions: equations