Evaluate.
a. -7x3 + 3x +11x – 9 for x = -2
b. 4y – 3y + 8 for y = -3
c. 14x+y + 3xy + 2xy – 5 for x = la
= 1 and y=2
33
Answers
Answered by
0
Step-by-step explanation:
a. x=2
= -7×3+3x+11x-9
= -21+3(2)+11(2)-9
= -21+6+22-9
= -15+13
= -2
b. y= -3
=4y-3y+8
=4(-3)-3(-3)+8
= -12+9+8
= -12+17
= 5
c. x=1, y=2
=14x+y+3xy+2xy-5
=14(1)+2+3(1)(2)+2(1)(2)-5
=14+2+6+4-5
=16+10-5
=16-5
=11
Similar questions