Factor 5a^2+20a-105

Math
5a2+20a-105
Factor 5 out of 5a2+20a-105.
Tap for more steps…
Factor 5 out of 5a2.
5(a2)+20a-105
Factor 5 out of 20a.
5(a2)+5(4a)-105
Factor 5 out of -105.
5a2+5(4a)+5⋅-21
Factor 5 out of 5a2+5(4a).
5(a2+4a)+5⋅-21
Factor 5 out of 5(a2+4a)+5⋅-21.
5(a2+4a-21)
5(a2+4a-21)
Factor.
Tap for more steps…
Factor a2+4a-21 using the AC method.
Tap for more steps…
Consider the form x2+bx+c. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is -21 and whose sum is 4.
-3,7
Write the factored form using these integers.
5((a-3)(a+7))
5((a-3)(a+7))
Remove unnecessary parentheses.
5(a-3)(a+7)
5(a-3)(a+7)
Factor 5a^2+20a-105

Solving MATH problems

We can solve all math problems. Get help on the web or with our math app

Scroll to top