Asked by Lisa
Solve 4a2 + 25 = –20a by factoring. Verify your solution
Solve and verify the following equation:
13x2 + 35x + 21 = –12x2 – 25x – 15
Solve and verify the following equation:
13x2 + 35x + 21 = –12x2 – 25x – 15
Answers
Answered by
drwls
4a^2 + 25 = –20a
4a^2 + 20a + 25 = 0
(2a +5)^2 = 0
a = -5/2
13x^2 + 35x + 21 = –12x^2 – 25x – 15
25x^2 + 60x +36 = 0
(5a +6)^2 = 0
a = -6/5
You do the verifying.
4a^2 + 20a + 25 = 0
(2a +5)^2 = 0
a = -5/2
13x^2 + 35x + 21 = –12x^2 – 25x – 15
25x^2 + 60x +36 = 0
(5a +6)^2 = 0
a = -6/5
You do the verifying.
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