Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−7a−7a2
Evaluate
(−1−a)×7a
Multiply the first two terms
7(−1−a)a
Multiply the terms
More Steps
Evaluate
7(−1−a)
Apply the distributive property
7(−1)−7a
Simplify
−7−7a
(−7−7a)a
Apply the distributive property
−7a−7a×a
Solution
−7a−7a2
Show Solution
Find the roots
a1=−1,a2=0
Evaluate
(−1−a)×7a
To find the roots of the expression,set the expression equal to 0
(−1−a)×7a=0
Multiply the first two terms
7(−1−a)a=0
Elimination the left coefficient
(−1−a)a=0
Separate the equation into 2 possible cases
−1−a=0a=0
Solve the equation
More Steps
Evaluate
−1−a=0
Move the constant to the right-hand side and change its sign
−a=0+1
Removing 0 doesn't change the value,so remove it from the expression
−a=1
Change the signs on both sides of the equation
a=−1
a=−1a=0
Solution
a1=−1,a2=0
Show Solution