4a2 - 9a + 5 = 4a2 - 4a -5a + 5 = 4a(a - 1) - 5(a - 1) = (4a - 5)(a - 1)
√(4a + 4) = √4(a + 1) = 2√(a + 1).
4a + 1 - a =19, rewrite your question, 4a + -a + 1 =19, 3a + 1 =19, subtract 1 from each side 3a = 18, divide by 3, a =6
4a3 - 4a2 = 4a2*(a - 1)
if you write (type) it out... 4a-1=15 add 1 to both sides 4a=16 divide both sides by 4 a=4
4a2 - 9a + 5 = 4a2 - 4a -5a + 5 = 4a(a - 1) - 5(a - 1) = (4a - 5)(a - 1)
-4-4-4a (-1)(4+4+4a) (-1)(4)(2+a)
9=4a+13 9-13=4a -4=4a -4/4=a -1=a a=-1
4a
7a-17 = 4a+1 7a-4a = 1+17 3a = 18 a = 6
It is -44 + 4a
√(4a + 4) = √4(a + 1) = 2√(a + 1).
-1
4a - 72a + 1 = -68a + 1 and that cannot be simplified further.
4a + 1 - a =19, rewrite your question, 4a + -a + 1 =19, 3a + 1 =19, subtract 1 from each side 3a = 18, divide by 3, a =6
4a3 - 4a2 = 4a2*(a - 1)
if you write (type) it out... 4a-1=15 add 1 to both sides 4a=16 divide both sides by 4 a=4