Question

B в кв. -6b+9 при b=-2;0;6

Answer 1

Это формула. Квадрат разности. (b-3)в кв. Если b=-2, то (b-3)в кв. = -5•-5=25; если b=0, то (b-3)в кв. = -3•-3=9; если b=6, то (b-3)в кв. = 3•3=9

Answer 2

To evaluate the expression -6b+9 when b is equal to -2, 0, and 6, we simply substitute these values of b into the expression and simplify:

When b = -2: -6b+9 = -6(-2)+9 = 21

When b = 0: -6b+9 = -6(0)+9 = 9

When b = 6: -6b+9 = -6(6)+9 = -27

Therefore, when b is equal to -2, 0, and 6, the value of -6b+9 is 21, 9, and -27, respectively.