CAP1. If x= 3, find the(a) x + 33. find the value of the following:(b)

CAP1. If x= 3, find the(a) x + 33. find the value of the following:(b) 3x - 62 Ifr=(C) 9–3x (d) x-11, find the value of the following:(2) 3x-1(b) – 3x² + 2x-1 (c)-2-2+x-1 (d) &+*+13. If x= 1 and y = -1, find the value of the following:(2) 2 +3(b) 2 +3 + xy (0) 37 +37–3x7 (6) 2+2– 2xy4 Find the value of the following expressions when x = 0, y = -2.(a) 2 +3 + 2xy (b) X-3(c) 22 +27 - xy (d) 2 - xy +75. Simplify the expressions and find the value when x = -2.(a) 3(x+5)-X-7 (B) x+5-2(x - 5) (6) 2(4x - 1) + 4(2x+1)5 when (a) = -1 (b)x= 1?

Answer»

1a)3-3=0, b)3x-6=3(3)-6=9-6=3, c)9-3x=9-3(3)=9-9=0; d)2/3x-1=2/3(3)-1=2-1=1

x=0, y=-2; 4(a)=x^2+y^2+2xy=(0)^2+(-2)^2+2(0)(-2)=4; (b)x^2-y^2=(0)^2-(-2)^2=-4; (c)2x^2+2y^2=2(0)^2+2(-2)^2=8,