8a square +6a-27 factorise
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Answer:-9/4 and 3/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
8a^2 + 6a-27.
-27*8 = -216
We have to find two numbers, whose sum is 6 and product is -216
That two numbers are 18 and -12
Now, we have to divide those two numbers by 8 (i.e. coefficient of a^2)
18/8 = 9/4
-12/8 = -3/2
So,
(a+9/4) (a-3/2) = 0
a = -9/4 or a = 3/2
The values of a are -9/4 and 3/2
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