Question Simplify the expression −4a2−28ab−49b2 Evaluate (−2a−7b)(2a+7b)Multiply the terms −(−2a−7b)2Evaluate the power −(2a+7b)2Expand the expression More Steps Evaluate (2a+7b)2Use (a+b)2=a2+2ab+b2 to expand the expression (2a)2+2×2a×7b+(7b)2Calculate 4a2+28ab+49b2 −(4a2+28ab+49b2)Solution −4a2−28ab−49b2 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix