What is the value of 4a3 – 2b2 + 5 when a = 3 and b = −2?
2 answers:
4a(3)-2b(2)+5
4(3)(3)-2(-2)(2)+5
12(3)-(-4)(2)+5
36-(-8)+5
44+5
49
The answer is 49.
4a3 – 2b2 + 5
= 4 * 3^3 - 2 * (-2)^2 + 5
= 4 * 27 - 2 * 4 + 5
= 96 - 8 + 5
= 93
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Step-by-step explanation:
5(2x^2 - 5x - 3) = 5(2x + 1)(x - 3)
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X= first number
x+1= second number
2x+1=275
2x=274
x+274
x=137 first number
137+1=138 second number
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Step-by-step explanation:
y = -4 - -6 =
-- ----------
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