The discriminant is b^2-4ac.
So, b=7, a=2, and c=3.
7^2=49-4(2)(3)=49-24=25.
So the discriminant is 25.
2a2+2a2 = 4a2
2a2 - 13a + 15 = (2a - 3) (a - 5)
2a2
a3 - 2a2 + 4a - 8 = a2(a - 2) + 4(a - 2) = (a - 2)(a2 + 4)
5a3-45a=-2a2+18 5a(a2-9)=-2(a2-9) 5a=-2 a=-2/5
It is a quadratic expression which can't be factored because its discriminant is less than zero.
2a2+2a2 = 4a2
2a2 - 13a + 15 = (2a - 3) (a - 5)
2a2+33a+136 = (2a+17)(a+8) when factored
2a2
a3 - 2a2 + 4a - 8 = a2(a - 2) + 4(a - 2) = (a - 2)(a2 + 4)
3a4 - 2a2 + 5a - 10 - 2a4 + 4a2 + 5a - 2 = a4 + 2a2 + 10a - 12 = a4 + (2a - 2)(a + 6)
2(2a2 - 31)
5a3-45a=-2a2+18 5a(a2-9)=-2(a2-9) 5a=-2 a=-2/5
sqrt(a2 + a2) = sqrt(2a2) = sqrt(2)*sqrt(a2) = sqrt(2)*asqrt(a2 + a2) = sqrt(2a2) = sqrt(2)*sqrt(a2) = sqrt(2)*asqrt(a2 + a2) = sqrt(2a2) = sqrt(2)*sqrt(a2) = sqrt(2)*asqrt(a2 + a2) = sqrt(2a2) = sqrt(2)*sqrt(a2) = sqrt(2)*a
(a - 1)(2a - 3)
a2 + a2 = 2a2