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addition and multiplication property of equality

Step-by-step explanation:

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Addition property of equality, and Multiplication property of equality

Explanation:

t/5 - 5 = -8

+5 +5

(addition property of equality, add 5 on both sides to cancel out -5)

t/5 = -3

×5 ×5

(multiplication property of equality, multiply by 5 on both sides to cancel out the denominator of t)

t = -15

"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: