Z^2-3z-54 for factorisation for grade 8.

(z - 9)(z + 6)

Step-by-step explanation:

Given

z² - 3z - 54

Consider the factors of the constant term (- 54) which sum to give the coefficient of the z- term (- 3)

The factors are - 9 and + 6, since

- 9 × 6 = - 54 and - 9 + 6 = - 3 , thus

z² - 3z - 54 = (z - 9)(z + 6)

answer: finding the extract measurements and knowing the points

step-by-step explanation:

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.