Find the value of 4x^2 - 3x + 5 when x = -2

4(-2)^2 - 3(-2) + 5

4(4) - (-6) + 5

16 + 6 + 5

22 + 5

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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