6t^{2} – 13 when t = 2

11

Step-by-step explanation:

6t^2 - 13

Let t=2

6 * 2^2 -13

powers first

6 *4 -13

Multiply

24 -13

subtract

11

Step-by-step explanation:

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1 is b and 2 is d

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11