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Akimi4 [234]
3 years ago
8

Solve by factorisation 2x2 + 3x - 20 = 0

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
7 0
(2x - 5) (x + 4).................
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Solve for x 14 x square+7x-6
irina [24]

Answer:

x=0.450765 or x=−0.950765

Step-by-step explanation:

14x² + 7x - 6

→ Find the product, sum and factors

Product = -6

Sum = 7

Factors = No factors

→ Since there are no factors utilise the quadratic formula

\frac{-b+-\sqrt{b^{2}-4ac } }{2a}

→ List the values of a, b and c

a = 14

b = 7

c= -6

→ Substitute into the formula

\frac{-7+-\sqrt{7^{2}-4*14*-6} }{2*14}

→ Simplify

x=0.450765 or x=−0.950765

8 0
4 years ago
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What is the value of x in the following equation? 2(x-3)+3=6x-5<br> x=2<br> x=-2<br> x=1/2<br> x=4
creativ13 [48]

x=1/2

don't mind the dirty white board lol

6 0
2 years ago
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Please help ASAP will give brainliest
umka21 [38]

Answer:

B and E

Step-by-step explanation:

Hope it helps

4 0
4 years ago
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Kendall surveyed the students at her school to find out if they like horror movies and/or animated movies. the table below shows
zzz [600]
                                         like horror movies        hate horror movies     total
like animated                              21                                 22                       43
doesn't like animated                 56                                  3                        59
total                                             77                                  25                      102

if a student likes horror movies (there are 77 of them)...what is the probability that student also like animated movies.....21/77 or 27%
7 0
3 years ago
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How to do y=2×+4 , -5×-5y=-5
RUDIKE [14]
What is the problem? These arent a problem because I dont know what to do with them.
6 0
3 years ago
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