Question

(a) - 4x + 5 (d) xy + 2x²y²
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Answer 1

Explanation:

a)

-4x + 5 = 0

-4x = -5

x = 5/4

b)

xy(1 + 2xy) = 0

1 + 2xy = 0

2xy = -1

xy = -1/2

y = -1/2 / x

substituting the value of x from part (a)

y = -1/2 / 5/4

= -1/2 * 4/5

= -2/5