Expand left side of A: Expand the left side of equation A.(5b−2)2+4=25b2−20b+4
Simplify left side of A: Simplify the left side of equation A.25b2−20b+4=25b2−20b
Subtract from both sides of A: Subtract 25b2−20b from both sides of equation A.4=0
Check errors in A: Check for errors in equation A. The equation 4=0 is not possible, so there is no solution for A.
Expand left side of B: Expand the left side of equation B.(2x2+y2)(2x2−y2)=4x4−y4
Simplify right side of B: Simplify the right side of equation B.4x4−y4=4x2−y2
Check errors in B: Check for errors in equation B. The simplified form 4x4−y4=4x2−y2 does not match the original equation, so there is no solution for B.
More problems from Find derivatives using the quotient rule II