If a and b are real numbers such that the following expression is true.

a^2+5b^2+4ab+3=6b−6

Find the value of a+b?

Correct answer marked below

-6

-3

Correct

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What this question tests

Your ability to manipulate linear and quadratic expressions, substitute unknowns, and solve equations under time pressure.

Losing a sign when moving terms across the equals sign, or dividing both sides by a variable that could equal zero.

If a and b are real numbers such that the following expression is true.a^2+5b^2+4ab+3=6b−6Find the value of a+b?