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To answer this, first convert it into an equation: (4)(x+7) = -36 Now, solve for x: (4)(x+7) = -36 4x+28 = -36 4x = )-36)-28 4x = (-36) + (-28) 4x = -64 x = (-64)/4 x = -16
10x2 - 64 = 36 + 6x2; whence, 4x2 - 100 = 0, x2 = 25, and x = ±5.
10x2 - 64 = 36 + 6x2 Combine like terms: 4x2 = 100 Divide both sides by 4: x2 = 25 Take square roots: x = -5 or +5
1, 4, 9, 16, 25, 36, 49, 64, 81, 100
64+49+36+25+16+9+4+1 (leme get a calculator)= 204