Mathematics Test—No Calculator

x. close parenthesis, squared, plus 7, open parenthesis 2 x. close parenthesis, minus 30, equals zero. Since the two numbers whose sum is negative 7 and whose product is negative 30 are negative 10 and 3, the equation will be factored as open parenthesis, 2 x. minus 3, close parenthesis, open parenthesis, 2 x ................
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