Factor the polynomial x2 2x â€"" 3x â€"" 6 by double grouping. Group terms with common factors: (x2 2x) (â€"" 3x â€"" 6) Factor the GCF from each group: x(x 2) â€"" 3(x 2) Write the polynomial as a product of binomials:.

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answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629

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step-by-step explanation:

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