3 years ago

#18 There are 8 students

Mathematics

1 answer:

S_A_V [24]3 years ago

8 0

There are 20 students in the class.

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Solve the equation by factoring.

Delicious77 [7]

Factorizing an expression involves writing the expression in simpler forms

The values of z are $z = \frac 15$ or $z=4$

The equation is given as:

$5z^2 - 21z + 4 = 0$

Expand the equation

$5z^2 - 20z -z + 4 = 0$

Factorize the expression:

$5z(z - 4) -1(z - 4) = 0$

Factor out z - 4

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Split

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Solve for z

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Hence, the values of z are $z = \frac 15$ or $z=4$

Read more about factorization at:

brainly.com/question/11579257

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