The expression (a+b) + (a-b) can be rewritten as a + b + a - b = 2a.There is no need to use absolute value.
Evaluate -4(a+b) - 10a/b when a=8 and b=5
The expression is: 5(b + x)
The area of rectangle is : 20.0
5 times b
The expression is: (4a+b)/(2a-5b)
(a - b + 2)(a + b + 2)
The question contains neither an expression nor an equation (or inequality). There can, therefore be no sensible answer.
(ab/b) / (4a/5b) =(ab / b) * (5b / 4a) = (5ab2 / 4ab)= 5 / (4b)
The equation cannot be solved as there are two unknowns. However it can be simplified and the two unknowns (a and b) expressed in terms of the second unknown. 1) Expressing a in terms of b 4a + 2 = 3b - 5 4a = 3b -7 if desired this could be stated as a = (3b - 7)/4 2) Expressing b in terms of a 3b - 5 = 4a + 2 3b = 4a + 7 if desired this could be stated as b = (4a + 7)/3
You can write that as 5 / (a + b), or as a fraction, with the 5 on top, and a + b at the bottom. The actual value of this expression will depend on the values of "a" and "b".
The answer to 4a times 3b equals 1.3. You have to find the value of A and B.
A verbal expression for 5 a-b is that it is 5 is multiplied by the difference between a and b.
i d know
Area = base * height = 5*(4a + b) m2 = (20a + 5b) m2
Simultaneous Equations 4a - 5b = 7 4a + 5b = 17 Add the two , this will eliminate 'b' 8a = 24 Divide both sides by '8' a = 3 When a= 3 , substitute into eityher equation for 'b'. 4(3) + 5b = 17 12 + 5b = 17 5b = 17 - 12 = 5 5b = Divide both sides by '5'. Hence 'b = 1'.
4a² - b² = (2a + b)(2a - b)