Question

6. Simplify the expression and find its value
when a = 4 and b = -3.
3(a² + ab) - 4(ab - a^2) +b^2

Answer 1

Answer:

133

Step-by-step explanation:

a = 4 and b = -3.

3(a² + ab) - 4(ab - a^2) +b^2

= 3a²+3ab-4ab+4a²+b²

= 7a²-ab+b²

= 7(4)² - (4)(-3) + (-3)²

= 112 -(-12)+9 = 112+12+9 = 133